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.

Sentence 1: the villagers are inadvertently involving themselves in drug trafficking. Sentence 2: 105 inmates are serving sentences for drug trafficking.
1

Sentence 1: A group of youngsters swim in lake water Sentence 2: Many children are playing and swimming in the water.
4

Sentence 1: US Special Forces troops are training Colombian soldiers at military bases in the region to protect the pipeline, which transports crude from Colombia's second-biggest oil field. Sentence 2: U.S. Special Forces troops are training Colombian soldiers at military bases in the region to protect the pipeline.

3

