TASK DEFINITION: You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".
PROBLEM: Sentence1: Not only is this the oldest known planet , it 's also the most distant ., Sentence2: Astronomers have found the oldest and most distant planet known in the universe .

SOLUTION: Yes

PROBLEM: Sentence1: Former Secretary of State Bill Jones has also expressed interest in the race but has not yet announced plans ., Sentence2: Former Secretary of State Bill Jones , another potential major candidate , had not divulged his plans Tuesday .

SOLUTION: Yes

PROBLEM: Sentence1: It would be difficult to overestimate the potential dangers of the Remote Procedure Call ( RPC ) vulnerability ., Sentence2: The flaw involves the Remote Procedure Call ( RPC ) protocol , which deals with inter-computer communications .

SOLUTION:
No