TASK DEFINITION: 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.
PROBLEM: Sentence 1: Poirot, I cannot believe you are serious. Sentence 2: Poirot was not serous at all. 

SOLUTION: fiction

PROBLEM: Sentence 1: In King's letter from the Birmingham jail, where he languished for a week in April 1963, he pulled up hope in paired phrases of secular and religious faith, repeatedly invoking constitutional and God-given rights in a characteristically American ... Sentence 2: King was never arrested at any point during his life.

SOLUTION: slate

PROBLEM: Sentence 1: If the response-to-advertising mail were also added to advertising mail it would have resulted in double counting. Sentence 2: If the response-to-advertising mail were also added to advertising mail the items would result in an increase in revenue. 

SOLUTION:
government