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.

Ex Input:
Sentence 1: He must parry opponents' attacks better. Sentence 2: He hadn't practiced parrying techniques recently.

Ex Output:
no


Ex Input:
Sentence 1: activities calculated with data collected in 1985. Sentence 2: The data was collected in 1985

Ex Output:
yes


Ex Input:
Sentence 1: A recent study of the kiosks' first 18 months of operation concluded it is too soon to tell if the system will relieve pressure on court calendars. Sentence 2: The study concluded that the system has ill effects on court calendars.

Ex Output:

yes