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.

[Q]: Sentence 1: The primary focus of Systematic Dialectics is syn chronic, not dia chronic. Sentence 2: Thus, Meta - System - atic Dialectic is Diachronico - Synchronic Dialectic.
[A]: 2


[Q]: Sentence 1: Full Episode: Nightline 6/29: Katie Holmes, Tom Cruise to Divorce Sentence 2: Custody, images at stake in Cruise-Holmes divorce
[A]: 1


[Q]: Sentence 1: US Senate confirms Janet Yellen as US Federal Reserve chief Sentence 2: Senate confirms Janet Yellen as next Federal Reserve Chair
[A]:
5