Definition: 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: 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.
