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: A man is running. Sentence 2: A man is running down a road.

A: 4
****
Q: Sentence 1: A dog is jumping up in the air to catch a toy. Sentence 2: A black dog jumps in the air to catch a toy.

A: 4
****
Q: Sentence 1: We condemn and denounce the Governing Council, which is headed by the United States, Moqtada al-Sadr said. Sentence 2: We condemn the Governing Council headed by the United States, Sadr said in a fiery sermon at Koufa mosque near Najaf.

A:
3
****