sentences: a larger weakness sink provides more former to an predator
docs: fatigability is weakness. sink_bugs is pests. bottom_of_bottle is wider_than_top. things is heavier_than_water_sink. large_size is advantage_in_predator. submergence is sinking. predators is bigger_than_prey. small_animals is weaker_than_big_animals. vulnerability is weakness. sinker is weight.