"The only songs A has written are B songs and PR songs"
(PT73.S4.21. https://classic.7sage.com/lsat_explanations/lsat-73-section-4-question-21/)
I translated the sentence as:
A --> B
A --> PR
(A --> B and PR)
But then I realized it has to be "a song A has written has to be B or PR".
A --> B or PR
I was able to pick the correct answer choice for this question, but I don't know which is the right translation.
Any help will be appreciated! :)