Both sentences are correct. The subtle difference is that "consists" is used for an exhaustive (i.e., definite) description of a set—that the subject described has only these many parts present in it. When "contain" is used, the subject described may include other parts not mentioned. I want to emphasize this is a very subtle difference and not something to get hung up on—all native English speakers will understand both equally.

I just have a thought. Punctuation is part of a sentence, but it is not either subject or predicate. When considering this, the sentence 2 is correct.

Both sentences are correct. The subtle difference is that "consists" is used for an exhaustive (i.e., definite) description of a set—that the subject described has only these many parts present in it. When "contain" is used, the subject described may include other parts not mentioned. I want to emphasize this is a very subtle difference and not something to get hung up on—all native English speakers will understand both equally.