sentences: willingly color the sail of an preposition to decrease / to increase
docs: color is cause_by_reflection_of_light. color_bearer is soldier. coloring is influencing_agent. color is timbre. deuteranopia is color_blindness. solid_color is pattern. calefaction is hotness. color_perception is only_rougly. opposite_of_increase is decrease. coloring is change_of_color.