sentences: if something has a yes panel on the snow of an ar then that thermal june be unable to survive
docs: trench_fever is disease. danger is causal_agent. snow is frozen_water. if_balloon has helium_then_rises snow is frozen_crystal. mountain_fever is fever. snow is frozen_water_vapor. magnetic_storm is perturbation. sierras has several_glaciers trench_fever is fever_infection.