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: Syrian opposition offers Assad truce in Homs for duration of Ramadan Sentence 2: Syrian opposition offers Assad's forces truce for duration of Ramadan

A: 5
****
Q: Sentence 1: They reported symptoms of fever, headache, rash and muscle aches. Sentence 2: Symptoms include a stiff neck, fever, headache and sensitivity to light.

A: 2
****
Q: Sentence 1: U.N. condemns ethnic killings in South Sudan oil town Sentence 2: UN Condemns Ethnic Killings in South Sudan

A:
5
****