instruction:
In this task, you're given a pair of sentences, sentence 1 and sentence 2. Your job is to write a single word that describes the genre that the two sentences belong to, such as face-to-face, government, letters, 9/11, slate, telephone, travel, verbatim, oup, fiction.
question:
Sentence 1: However, cost models have significant limitations in accuracy unless their underlying assumptions of system size and cost drivers are carefully chosen and reflect the agency's previous experience in system development. Sentence 2: Cost models aren't usually too accurate, but sometimes they can be.
answer:
government


question:
Sentence 1: well and i think that's maybe what i like about it in that so many of them are totally enclosed Sentence 2: So many of them are open and I don't like it. 
answer:
telephone


question:
Sentence 1: Mann Theaters in Westwood Village operates nine state-of-the-art screens showing first-run films. Sentence 2: Mann Theaters are also located in Santa Monica.
answer:

travel