Below in the next 3 questions, you'll find the description of several different linguists' work. Attribute a level of adequacy to them (state whether the grammars they developed are observationally adequate, descriptively adequate, or explanatorily adequate). Explain why you assigned the level of adequacy that you did.

1. Juan Martinez has been working with speakers of Chicano English in the barrios of Los Angeles. He has been looking both at corpora (rap music, recorded snatches of speech) and working with adult native speakers.

2. Fredrike Schwarz has been looking at the structure of sentences in eleventh-century Welsh poems. She has been working at the national archives of Wales in Cardiff. 3. Boris Dimitrov has been working with adults and corpora on the formation of questions in Rhodopian Bulgarian. He is also conducting a longitudinal study of some two-year-old children learning the language to test his hypotheses.