How to classify non-mob deaths

Hey all, for a Bingo datapack I'm working on, I want to track deaths by different sources. I found from the Minecraft Wiki how to make it work for, say, a zombie. However, I don't know what to put for deaths by other means. My zombie example works but my dripstone example doesn't. I don't even know what to search to find the names of all of the non-mob deaths. Any help would be appreciated!