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: The data used for the analysis are described in the Appendix. Sentence 2: The data was never explained in the Appendix.
answer:
government


question:
Sentence 1: Mr. Brown?  Sentence 2: Mr. Brown, is that you?
answer:

fiction