sentences: lack of food causes starvation
docs: starvation is privation. lack is need. starvation is hunger. mineral_deficiency is lack. people_remain_hungry_as has no_food_to_eat destitute is lacking_food_or_shelter. starvation is painful_way_to_die. food has effect_of_suppressing_hunger starvation is disease. starvation is horrible_thing.