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.

Input: Consider Input: Sentence 1: A climber is standing on the rock face next to the pink rope. Sentence 2: The children are running in the snow with fences in the background.

Output: 0


Input: Consider Input: Sentence 1: Fighting continued until midnight, western rebel commander Ousmane Coulibaly told Reuters by satellite phone on Sunday. Sentence 2: They ransacked and burned the two villages completely, rebel commander Ousmane Coulibaly told Reuters by satellite phone from the bush.

Output: 3


Input: Consider Input: Sentence 1: Washington, however, said more was needed to prevent complaints being filed in the first place. Sentence 2: But the US insisted it wanted more done to prevent complaints being filed in the first place, preferably by repealing the entire law.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: 3


