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.

Sentence 1: A black dog stands next to materials at a construction site. Sentence 2: An Asian toddler girl sits next to a pot of flowers on a marble post.
0

Sentence 1: And I'm your friend Mitt. Sentence 2: Your good friend Mitt.
4

Sentence 1: Police raise death toll in bus accident to 8 Sentence 2: Rodney King death ruled accidental

0