I'm trying to figure out if (2) necessarily follows from (1). Or can (1) and (2) be true together?

1. whoever does X, except for the reason of Y, commits Z

2. whoever does X, for the reason of Y, does not commit Z

It kinda makes sense to me but I'd appreciate any feedback as the middle use of an exception kinda throws me off.

I'm trying to figure out if (2) necessarily follows from (1). Or can (1) and (2) be true together?

1. whoever does X, except for the reason of Y, commits Z

2. whoever does X, for the reason of Y, does not commit Z

It kinda makes sense to me that (2) would follow but I'd appreciate any feedback, as the middle use of an exception throws me off.