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: Man standing in front of silver train. Sentence 2: Man standing in front of a silver rail car.
[A]: 4


[Q]: Sentence 1: It's so stupid that it just has to be true. Sentence 2: It's amusing to think it even might be true.
[A]: 3


[Q]: Sentence 1: That is not direct responsibilty to the constituents. Sentence 2: Aye but they ARE responsible to their constituents.
[A]:
3