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: Umm the California was a cargo ship I dont care what the article says. Sentence 2: The California was a cargo ship.

A: 4
****
Q: Sentence 1: The skinny cows are standing on the grass. Sentence 2: The white ducks are standing on the ground.

A: 1
****
Q: Sentence 1: Two brown dogs are biting each other. Sentence 2: Two brown dogs biting each other on sand.

A:
4
****