In the third rule, it says that if y is not in the park if either L or O is in the park, but then on the explanation, the sub game boards, he says that Y can be in or can be out if either L or O are out..., what am I missing? I thought if either one of them was out, then y had to be out too.

Please help!

https://classic.7sage.com/lsat_explanations/lsat-b-section-2-game-2/