Your sentence
어느+것
Words in this sentence
것
thing; something; that which; what; used to designate any object, action, or phenomenon, forming noun phrases.; an object belonging to an owner; forms constructions equivalent to English possessive pronouns. Colloquially pronounced 꺼 (kkeo) with initial tensing.; Emphasizes the speaker's certainty about the preceding verb or adjective.; Used as an element in a number of verbal suffixes; see the "Derived terms" section.
Noun