Ribbon

A series staple, and in FF7 the answer to most things that would otherwise ruin a fight.

price is absent rather than zero. The Ribbon is not sold, and writing 0 would say it is sold and free — the difference between "no price" and "a price of nothing" is exactly the kind of thing a machine-readable field gets wrong when a blank is treated as a default.

sold_in is absent for the same reason: an empty list is a claim that it is sold nowhere, which happens to be true here but should be stated rather than inferred from emptiness. Until someone writes it deliberately, absent means undecided.