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: As previously noted, LSC reissued its CSR instructions to all grantees, calling attention to problem areas known at that time. Sentence 2: LSC never reissued CSR instructions.

Ex Output:
yes


Ex Input:
Sentence 1: A guided boat trip will also give an excellent introduction, displaying in leisurely fashion ' and with informative commentary ' sites including the Eiffel Tower, the Palais de Chaillot and Trocad??ro Gardens, the Grand and Petit Palais, the Palais Bourbon, the Louvre, Notre-Dame, and of course many of the beautiful bridges. Sentence 2: Commentary on the Eiffel Tower can be received on guided boat trips.

Ex Output:
yes


Ex Input:
Sentence 1: Plants, trees, and native birds are complemented by rivers and streams teaming with fish and turtles. Sentence 2: There are over 10 species of birds present.

Ex Output:

no