system
A chat on 4chan
human
juniper berries turn black when rubbed against certain things, given certain contexts.

according to a mostly-juniper-less bush of mine, a tea-light candle is infinitely wicked.

also the juniper berry turns black when rubbed against my boob and my scalp.

it doesn't turn black when i remove it from the tree or when i rub it against sticks indicating XX. it does when i rub it against XY or NB.
gpt
the bark of a juniper tree looks like the interior of adolf hitler's castles.

if you rely on AI for all your problems, a juniper tree will become bare.