Sentence 1: In a "first-past-the-post" system, it is difficult to sustain more than two parties.

 Sentence 2: While the 'first-past-the-post system favours two parties, it certainly doesn't guarantee the marginalization of third parties.

From 0 to 5 (0="no meaning overlap" and 5="means the same thing"), how similar are the two sentences?

OPTIONS:
- 0
- 1
- 2
- 3
- 4
- 5
3