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.
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Question: Sentence 1: A young boy laying on a sofa with a dog. Sentence 2: A small boy laying on a sofa with a dog.

Answer: 5


Question: Sentence 1: A person wearing a bike helmet talks on a cell phone. Sentence 2: A person wearing a helmet rides a bike near a white structure.

Answer: 3


Question: Sentence 1: A lion is walking in an enclosed area. Sentence 2: A lion is walking around.

Answer:
3