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.

[Q]: Sentence 1: A rock inscription from Emperor Ashoka indicates that Delhi was a major point on the trade route between the northwest frontier and Bengal in the third century b.c. Sentence 2: Delhi was not a point of trade until the 5th century AD, according to the rock inscription.
[A]: yes


[Q]: Sentence 1: The northerner drew a long thin blade from his belt and examined it. Sentence 2: The northerner looked a blade he took out from his boot.
[A]: yes


[Q]: Sentence 1: Natalia didn't comment, though her expression was even more dour than usual. Sentence 2: Natalia was quiet and sad.
[A]:
yes