Definition: You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".

Positive Example 1 -
Input: Sentence1: While it was being called mandatory , Dupont said authorities were not forcing people from their homes ., Sentence2: It was called mandatory , but Dupont said authorities did not force people to leave .
Output: Yes

Positive Example 2 -
Input: Sentence1: She countersued for $ 125 million , saying Gruner & Jahr broke its contract with her by cutting her out of key editorial decisions ., Sentence2: She countersued for $ 125 million , saying G + J broke its contract with her by cutting her out of key editorial decisions and manipulated the magazine 's financial figures .
Output: No

Negative Example 1 -
Input: Sentence1: Ratliff 's daughters , Margaret and Martha Ratliff , were adopted by Peterson after their mother 's death ., Sentence2: Peterson helped raise Ratliff 's two daughters , Margaret and Martha Ratliff , who supported him throughout the trial .
Output: Yes

Negative Example 2 -
Input: Sentence1: Toll , Australia 's second-largest transport company , last week offered NZ75 a share for Tranz Rail ., Sentence2: Toll last week offered to buy the company for NZ75c a share , or $ NZ158 million .
Output: Yes, they are equivalent

Now complete the following example -
Input: Sentence1: He said it was not possible to rule out that the chemical was a cancer risk to humans ., Sentence2: However , it is not possible to say whether it may pose a cancer risk to humans .
Output: 


Output: Yes