color eat body / lens / runoff / nutrients / multiple
green is primary_colour. primary_colour is color. coloring is recreational_activity. general_photosynthesis is autotrophic_nutrient_assimilation. chlorophyll is green. color_of_fish is function_of_fish's_survival. primary_colour_for_pigments is primary_colour. color_of_fish is not function_of_fish's_survival. green is not primary_colour. color is color_perception_category.