父(ちち) chichiは wa私(わたし) watashiに ni、昨日(きのう) kinou訪(たず)ね()て() tazuneteきた kitaの noは wa誰(だれ) dareな naの noか ka聞(き)き()ま()し()た() kikimashita。 My father asked me who had visited yesterday. Literal Father [topic-は] me [to-に], yesterday visited [topic-は] who [question-なのか] asked. 昨日訪ねてきたのは誰なのか — an embedded wh-question ('who was it that came yesterday?'). The のは...なのか construction frames the question. familydaily lifequotative とembedded questionembedded wh-question
父(ちち) chichiは wa私(わたし) watashiに ni、昨日(きのう) kinou訪(たず)ね()て() tazuneteきた kitaの noは wa誰(だれ) dareな naの noか ka聞(き)き()ま()し()た() kikimashita。 My father asked me who had visited yesterday. Literal Father [topic-は] me [to-に], yesterday visited [topic-は] who [question-なのか] asked. 昨日訪ねてきたのは誰なのか — an embedded wh-question ('who was it that came yesterday?'). The のは...なのか construction frames the question. familydaily lifequotative とembedded questionembedded wh-question