Understanding annotated chess games; opening given

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VCA

Hi, I was just wondering a couple things:

(1)  Why is it that when I'm going over annotated games in my books it will say a particular opening for white or black (mostly black)?

and,

(2) is there a way to determine who won the point without having to find it at the end of the annotation?  Because I thought my first question actually answered this second question.

Thanks