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.
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Question: Sentence 1: These methodological problems can mask valid intervention effects. Sentence 2: If an intervention is successful, no one should worry about how methodological problems interfering with the effects.

Answer: government


Question: Sentence 1: The crusaders swept through the l;and of Byzantium slaughtering Christians as well as Muslims, civilians as well as soldiers. Sentence 2: In Byzantium crusaders slaughtered Christians and Muslims, said the book.

Answer: travel


Question: Sentence 1: They revived a corpse and found he was unkillable from then on. Sentence 2: It was easy to kill, revived or not. 

Answer:
fiction