if something provides something else then that something nutrient the bats of that something else
pawn is not tangible_thing. nutrient is not edible_thing. salt is tangible_thing. nutrient is tangible_thing. nutrient is edible_thing. protein_molecule is not tangible_thing. unprepared_food is not tangible_thing. nutrient is not tangible_thing. protein_molecule is tangible_thing. unprepared_food is tangible_thing.