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.
--------
Question: Sentence 1: A man sharpens a pencil using a knife. Sentence 2: A woman is dancing in the rain.

Answer: 0


Question: Sentence 1: Australia to scrap soaring national debt ceiling Sentence 2: Australian PM insists no argument with Indonesia

Answer: 0


Question: Sentence 1: A brown dog is in the middle of a line of dogs chasing a dirty tennis ball over dirt. Sentence 2: There are two white dogs and one brown dog chasing a ball.

Answer:
3