instruction:
Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
question:
buick rendezvous was a midsize crossover suv.
answer:
buick rendezvous


question:
john mercer langston (december 14, 1829 – november 15, 1897) was a dean at howard university.
answer:
john mercer langston


question:
altiphrynoides is a genus of toads.
answer:

altiphrynoides