Just for fun, because I noticed both my wife and I say LSAC/LSAT differently. I go the "word" approach and sat ELSAT, where she goes the letter approach and says L-S-A-T.
... park, then either L or O, but not both, are in ...
/Y --> L or O (representing 'either/or')
/Y ... --> /L and /O (representing 'not both')
- If ... "if both L & O are in the park, then ... "if both L & O are OUT, then Y is ...