@loren this kind of thing not only scratches my autistic itch for accuracy and exploring relations, but also excites a little bit of creativity. Like is there a diagram type that has all of these but then groups them towards poles, "things you can definitely not eat" (excluding the instruments) and "things that can definitely make a sound" (leaving the fish about halfway towards the instruments, but not solidly in the instrument category). Implied subtlety of knowable things.