Probably most of them. The big problem with emoji is that there are a ludicrous number of them, like kanji, but unlike kanji most of them have no agreed upon se

Probably most of them. The big problem with emoji is that there are a ludicrous number of them, like kanji, but unlike kanji most of them have no agreed upon semantic meaning, so everything but the basics and things that are just graphics of some every day object have meaning determined by intuition and culture.