Composition (teaching of) ; English as a second language; ESL; TESOL ; Idioms (language teaching) ; Lexikometrie; Lexicometry; Automated Similarity Judgment Program; ASJP; Lexicostatistics ; Zweitspracherwerb (Textproduktion) ; Second language acquisition (text production) ; Text production (second language acquisition) ; Acceptability (second language acquisition) ; English