TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2. Your job is to determine if the two sentences clearly agree/disagree with each other, or if this can't be determined. Indicate your answer as yes or no respectively.
PROBLEM: Sentence 1: Natalia didn't comment, though her expression was even more dour than usual. Sentence 2: Natalia was quiet and sad.

SOLUTION: yes

PROBLEM: Sentence 1: A loaded rifle leaned at every window opening, ready to be fired through loopholes in the wooden war shutters. Sentence 2: There was a loaded rifle that was ready to be fired towards trespassers. 

SOLUTION: no

PROBLEM: Sentence 1: Her voice was troubled. Sentence 2: Her voice betrayed her fear for the future.

SOLUTION:
no