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: He said there were complex reasons for the increased numbers of cases and scientists were only just beginning to understand the risk factors ., Sentence2: However , he said , The reasons behind the increase in incidence are more complex and were just beginning to understand the risk factors .
answer:
Yes


question:
Sentence1: World Airways Inc. and North American Airlines Inc. also have filed applications seeking authority to provide service to Iraq ., Sentence2: Cargo carriers World Airways Inc. and North American Airlines Inc. have also applied for permission to fly to Baghdad , Mosley said .
answer:
Yes


question:
Sentence1: But Gelinas says only six have been fully re-evaluated ., Sentence2: Ms. Gelinas said only 1.5 per cent of those have been fully re-evaluated .
answer:

Yes