diff --git a/data-pipeline/source-data/german/nouns b/data-pipeline/source-data/de/noun
similarity index 100%
rename from data-pipeline/source-data/german/nouns
rename to data-pipeline/source-data/de/noun
diff --git a/data-pipeline/source-data/english/nouns b/data-pipeline/source-data/en/noun
similarity index 100%
rename from data-pipeline/source-data/english/nouns
rename to data-pipeline/source-data/en/noun
diff --git a/data-pipeline/source-data/spanish/nouns b/data-pipeline/source-data/es/noun
similarity index 100%
rename from data-pipeline/source-data/spanish/nouns
rename to data-pipeline/source-data/es/noun
diff --git a/data-pipeline/source-data/french/nouns b/data-pipeline/source-data/fr/noun
similarity index 100%
rename from data-pipeline/source-data/french/nouns
rename to data-pipeline/source-data/fr/noun
diff --git a/data-pipeline/source-data/french/adjectives b/data-pipeline/source-data/french/adjectives
deleted file mode 100644
index a374b94..0000000
--- a/data-pipeline/source-data/french/adjectives
+++ /dev/null
@@ -1,20 +0,0 @@
-grand
-petit
-bon
-mauvais
-beau
-nouveau
-vieux
-jeune
-heureux
-triste
-fort
-faible
-rapide
-lent
-chaud
-froid
-facile
-difficile
-propre
-sale
diff --git a/data-pipeline/source-data/german/verbs b/data-pipeline/source-data/german/verbs
deleted file mode 100644
index 84b9aea..0000000
--- a/data-pipeline/source-data/german/verbs
+++ /dev/null
@@ -1,20 +0,0 @@
-sein
-haben
-werden
-können
-müssen
-sagen
-machen
-geben
-kommen
-gehen
-wissen
-sehen
-lassen
-stehen
-finden
-bleiben
-liegen
-heißen
-denken
-nehmen
diff --git a/data-pipeline/source-data/italian/nouns b/data-pipeline/source-data/it/noun
similarity index 100%
rename from data-pipeline/source-data/italian/nouns
rename to data-pipeline/source-data/it/noun
diff --git a/data-pipeline/source-data/italian/adverbs b/data-pipeline/source-data/italian/adverbs
deleted file mode 100644
index e275515..0000000
--- a/data-pipeline/source-data/italian/adverbs
+++ /dev/null
@@ -1,20 +0,0 @@
-bene
-male
-sempre
-mai
-spesso
-raramente
-oggi
-domani
-ieri
-qui
-lì
-molto
-poco
-troppo
-abbastanza
-velocemente
-lentamente
-insieme
-forse
-davvero