[U5Q] Noah is learning single-word utterances to communicate…

[U5Q] Noah is learning single-word utterances to communicate. He only says words to his parents, who have given him his favorite toys when he asked in the past. Noah’s uncle is visiting the family and he does not speak the same language as Noah. The uncle rarely gives Noah his favorite toys as he does not understand Noha’s requests. Noah’s uncle is an example of a(n):