Definition: Evaluate the similarity between them and classify them into classes from 0-5 as follows:
0 : The two sentences are completely dissimilar.
1 : The two sentences are not equivalent, but are on the same topic.
2 : The two sentences are not equivalent, but share some details.
3 : The two sentences are roughly equivalent, but some important information differs/missing.
4 : The two sentences are mostly equivalent, but some unimportant details differ.
5 : The two sentences are completely equivalent, as they mean the same thing.
Input: Sentence 1: The vulnerability affects Windows NT 4.0, NT 4.0 Terminal Services Edition, XP and 2000, as well as Windows Server 2003. Sentence 2: Microsoft issued a patch for the vulnerability, which affects Windows NT 4.0, Windows NT 4.0 Terminal Services Edition, Windows 2000, Windows XP and Windows Server 2003.
