Wikipedia:Babel
ja この利用者は日本語母語としています。
en-2 This user is able to contribute with an intermediate level of English.
de-1 Dieser Benutzer hat grundlegende Deutschkenntnisse.
sm-0 This person does not understand Samoan language (or understands it with considerable difficulties).

Gagana fa'a Sāmoa = en:Samoan language = ja:サモア語