I could see this being one memorization representing a stack of cards pertaining to one subject and inside that memorization one line would represent a single card and except 2 values, front of card and back of card. With that logic you can still have one card per memorization if that’s your desire but gives you the freedom to add more cards to a subject/topic if needed.

Would the flashcard feature be to match up the body of the text with its title against other memorizations?

Or does 1 memorization have multiple front/back items?