That gray building?
Ano haiiro no biru desu ka.
that (someone or something distant from both speaker and listener, or situation unfamiliar to both speaker and listener)
grey; gray; ashen
indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
multi-floor building; multi-storey building; bill
indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way