if a vegetable can be scratched by a heat then that vegetable is soft
unusually_shaped_vegetable is vegetable_plant. mint_thing is greenish_thing. pepper is vegetable. chili_pepper is hot_food. once is done_can_eat_vegetables. hot_pepper is pepper. prickly_heat is rash. radish is sharp_tasting_vegetable. apples is not_vegetables. vegetable_peeler is cooking_utensil.