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.

Example Input: Sentence 1: they're expensive to maintain just the chemicals are expensive Sentence 2: The chemicals are expensive, but much cheaper when bought in bulk.
Example Output: telephone

Example Input: Sentence 1: Luca della Robbia's subdued glazed ceramic roundels depict the 12 Apostles and Four Evangelists. Sentence 2: Luca della Robbia never depicted any religious work.
Example Output: travel

Example Input: Sentence 1: Although she thought age of the interventionist could be an influential factor, she was unsure because there are so many interactions and factors that we have not looked at very carefully. Sentence 2: There were so many interactions and factors that we haven't looked at carefully, and she was unsure because of it.
Example Output:
government