sentences: if a living thing requires something then an increase in that something has a positive impact on that living thing's survival
docs: life is living_thing. aerobic_thing is living_thing. recovered_thing is living_thing. biologically_viable_thing is living_thing. living_thing is tangible_thing. sometimes_change is good_thing. living_organism is living_thing. immune_thing is living_thing. at_risk is living_thing. humans is living_things.