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: and they fail to realize that the formula is expressed in the the rationalized M K F system and they'll proceed to plug in inches and feet and pounds and uh  things like that and they come up with a funniest answers you ever you can imagine Sentence 2: They always immediately realize that the formula is being expressed in the M K F system.
Example Output: telephone

Example Input: Sentence 1: In a nearby 19th-century Anglican church is the visitor center, with exhibits and an audio-visual show. Sentence 2: The visitor center is in a cave.
Example Output: travel

Example Input: Sentence 1: Once or twice we came upon the remains of slaves who ran. Sentence 2: Some slaves that had run were shot as they fle.
Example Output:
fiction