if an organism is dead then that organism was living at one time
dead_human_body is not dead_organism. dead_person is not dead_organism. dead_insect is dead_organism. dead_living_organism is not dead_organism. dead_human_body is dead_organism. dead_insect is not dead_organism. dead_organism is not former_living_thing. dead_organism is former_living_thing. dead_living_organism is dead_organism. dead_person is dead_organism.