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.

[Q]: Sentence 1: Five cows are grazing beside the road. Sentence 2: Several sheep grazing in the field.
[A]: 1


[Q]: Sentence 1: elbaradei is the international atomic energy agency chief. Sentence 2: mohammed elbarade is the international atomic energy agency's director general.
[A]: 5


[Q]: Sentence 1: Someone is scratching an animals belly. Sentence 2: A woman is stroking a lemur.
[A]:
2