green plants perform photosynthesis to get food
photosynthesis is process. photosynthesis is process_by_which_leaf_makes_food. blueberries is food. general_photosynthesis is production. photosynthesis is not process_by_which_leaf_makes_food. plants has usually_green_leaves plants has leaves_to_gather_light photosynthesis_in_plants is physiological_process. general_photosynthesis is physiological_function. tomatoes is food.