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: Cristiano Ronaldo hat-trick fires Portugal to 2014 World Cup finals Sentence 2: Ronaldo hat-trick fires Portugal to World Cup

Answer: 5


Question: Sentence 1: Seniors would then have to pay 50 percent of their drug costs up to $3,450. Sentence 2: Above that, Medicare would pay 90 percent of all drug costs.

Answer: 2


Question: Sentence 1: A small cat laying on a wooden beam looking up at the camera. Sentence 2: The small dog is wearing a sweater and looking up at the camera.

Answer:
1