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.

Input: Consider Input: Sentence 1: They were highly skilled in such manual activities as thatching and weaving. Sentence 2: There were no skills.

Output: yes


Input: Consider Input: Sentence 1: Something is drawing them up from all over the planet."  Later, half a square mile of the shell cracked off. Sentence 2: Once the shell completely cracks, they will keep coming to end mankind.

Output: no


Input: Consider Input: Sentence 1: The uncertainties of schedules and frequency of strike action gradually disappeared in the 1990s, but the occasional wrinkle still needs to be ironed out. Sentence 2: Before the 1990s, strikes were a regular occurrence, and schedules were unreliable.


Output: no