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: Consider Input: Sentence 1: A girl playing is a pile of colorful balls. Sentence 2: A little girl plays in a pit of colorful balls.

Output: 5


Input: Consider Input: Sentence 1: Thai opposition protesters begin Bangkok shutdown Sentence 2: Thai protesters launch Bangkok 'shutdown'

Output: 5


Input: Consider Input: Sentence 1: Syrian opposition in reconciliation talks Sentence 2: Syrian Opposition Council to Establish Envoy in France


Output: 1