diff --git a/backend/ar/basis.json b/backend/ar/basis.json
index 8c30ea55..4bd0cd07 100644
--- a/backend/ar/basis.json
+++ b/backend/ar/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/de/basis.json b/backend/de/basis.json
index 9e6e08e9..8bcbd2c7 100644
--- a/backend/de/basis.json
+++ b/backend/de/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Kontrollierte Vokabulare",
         "own_last_edits": "Letzte eigene \u00c4nderungen",
         "contact": "Kontakt",
-        "uncertainty": "Unsch\u00e4rfe"
+        "uncertainty": "Unsch\u00e4rfe",
+        "certain": "Sicher",
+        "uncertain": "Unsicher",
+        "unknown": "Unbekannt"
     }
 }
\ No newline at end of file
diff --git a/backend/dsb/basis.json b/backend/dsb/basis.json
index f2184a9b..730ed36c 100644
--- a/backend/dsb/basis.json
+++ b/backend/dsb/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/en/basis.json b/backend/en/basis.json
index b5c4b05b..7e634a5e 100644
--- a/backend/en/basis.json
+++ b/backend/en/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/es/basis.json b/backend/es/basis.json
index c53b1292..9a26e358 100644
--- a/backend/es/basis.json
+++ b/backend/es/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/fr/basis.json b/backend/fr/basis.json
index 619cb3f3..7ae77237 100644
--- a/backend/fr/basis.json
+++ b/backend/fr/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/hsb/basis.json b/backend/hsb/basis.json
index f2184a9b..730ed36c 100644
--- a/backend/hsb/basis.json
+++ b/backend/hsb/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/hu/basis.json b/backend/hu/basis.json
index 4331dc15..63d7a1f1 100644
--- a/backend/hu/basis.json
+++ b/backend/hu/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Ellen\u0151rz\u00f6tt adatb\u00e1zisok",
         "own_last_edits": "Utols\u00f3 szerkeszt\u00e9s (saj\u00e1t)",
         "contact": "Kapcsolat",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/id/basis.json b/backend/id/basis.json
index b5352671..9332ed1c 100644
--- a/backend/id/basis.json
+++ b/backend/id/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Kosakata",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/it/basis.json b/backend/it/basis.json
index c53b1292..9a26e358 100644
--- a/backend/it/basis.json
+++ b/backend/it/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/iw/basis.json b/backend/iw/basis.json
index 1092274d..efb8d9eb 100644
--- a/backend/iw/basis.json
+++ b/backend/iw/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/nl/basis.json b/backend/nl/basis.json
index c53b1292..9a26e358 100644
--- a/backend/nl/basis.json
+++ b/backend/nl/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/pl/basis.json b/backend/pl/basis.json
index 6716f223..dd799010 100644
--- a/backend/pl/basis.json
+++ b/backend/pl/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/pt/basis.json b/backend/pt/basis.json
index 739b5c90..39744bdc 100644
--- a/backend/pt/basis.json
+++ b/backend/pt/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/ru/basis.json b/backend/ru/basis.json
index 5ca82dbc..a530087d 100644
--- a/backend/ru/basis.json
+++ b/backend/ru/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/tl/basis.json b/backend/tl/basis.json
index c53b1292..9a26e358 100644
--- a/backend/tl/basis.json
+++ b/backend/tl/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/tr/basis.json b/backend/tr/basis.json
index db9783b7..16df48c5 100644
--- a/backend/tr/basis.json
+++ b/backend/tr/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file
diff --git a/backend/zh/basis.json b/backend/zh/basis.json
index b5c4b05b..7e634a5e 100644
--- a/backend/zh/basis.json
+++ b/backend/zh/basis.json
@@ -143,6 +143,9 @@
         "controlled_vocabularies": "Controlled vocabularies",
         "own_last_edits": "Own last edits",
         "contact": "Contact",
-        "uncertainty": "Uncertainty"
+        "uncertainty": "Uncertainty",
+        "certain": "Certain",
+        "uncertain": "Uncertain",
+        "unknown": "Unknown"
     }
 }
\ No newline at end of file