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.

Example Input: Sentence 1: A woman is cutting a squash. Sentence 2: A woman is cutting big pepper.
Example Output: 2

Example Input: Sentence 1: The ADRs fell 10 cents to $28.95 at 10:06 a.m. in New York Stock Exchange composite trading today. Sentence 2: Shares of Fox Entertainment Group Inc., News Corp.'s U.S. media and entertainment arm, fell 45 cents to $26.85 in New York Stock Exchange composite trading.
Example Output: 1

Example Input: Sentence 1: Shares of Littleton, Colorado-based EchoStar rose $1.63, or 5.3 percent, to $32.26 at 10:55 a.m. Sentence 2: On Monday, EchoStar (DISH: news, chart, profile) shares shrank $1.40, or 4.4 percent, to $30.63.
Example Output:
2