instruction:
You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".
question:
Sentence1: Although Prempro pills were used in the study , the researchers said they had no evidence that other brands were safer ., Sentence2: Athough Prempro pills were used in the study , the researchers say they have no evidence that other brands are safer .
answer:
Yes

question:
Sentence1: Duke and North Carolina have been resolute in their positions against expansion ., Sentence2: Two schools , Duke and North Carolina , have steadfastly opposed expansion .
answer:
Yes

question:
Sentence1: The market remains pinned in a narrow range after a powerful rally drove the broad Standard & Poor 's 500 index .SPX up more than 20 percent since mid-March ., Sentence2: The market remains pinned in a narrow range after a powerful rally pushed the broad S & P 500 index up more than 20 percent since mid-March .
answer:
Yes