Detailed Instructions: 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.
Q: Sentence 1: Christianity threatened the establishment because it rejected the old gods and denied the divinity of the emperor. Sentence 2: The threat of Christianity was the greatest one the empire has ever faced.
A:
travel