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.

Example Input: Sentence 1: A teenage girl running on a beach shouting, with an older man walking behind her. Sentence 2: a young child running along the shore at a beach
Example Output: 2

Example Input: Sentence 1: A large black bird is sitting in the water. Sentence 2: The birds are swimming in the water.
Example Output: 3

Example Input: Sentence 1: No extortion, no bribery, no money involved He's asking for money for his vote. Sentence 2: No extortion, no bribery, no money involved Only class E felonies.
Example Output:
4