Minecraft wiki entry for JSON_format, associated text:  conditions:
 block: The block that the player harvested the honey from.
 block: A block ID.
 tag: A block tag.
 item: The item that the player used to harvest the honey.
Tags common to all items[show]
 player: The player that would get the advancement. May also be a list of predicates that must pass in order for the trigger to activate.
All possible conditions for entities[show]