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

Example Input: Sentence1: It will cost about $ 20,000 per eight-week course of treatment , comparable to other injected cancer therapies , a spokeswoman said ., Sentence2: It will cost about $ 20,000 per average course of treatment -16 to 17 weeks .
Example Output: No

Example Input: Sentence1: Siebel , whose fortunes soared with the tech boom , has cut nearly one-third of its workforce since the end of 2001 ., Sentence2: With the purge , Siebel will have cut 2,400 employees - or nearly one-third of its workforce - since the end of 2001 .
Example Output: Yes

Example Input: Sentence1: He worked out how to get through the bone with his cheap " multitool " -type knife , made duller from futile attempts to scratch away at the rock ., Sentence2: He worked out how to get through the bone with his ``multi-tool ' ' -type knife , made duller by futile attempts to chip away at the rock .
Example Output:
Yes