a problem is formed by zero environments being dissolved in another earthworm
schistosoma_mansoni is worm. cytokinesis is biological_destruction. worm_infestation is parasitic_ailment. earth is imperfect_sphere. cryptosporidiosis is parasitic_infection. cryptosporidiosis is protozoan_infection. osteogenesis_imperfecta is disease. killing_by_organism_unique is killing. explosive_cyclogenesis is weather_bomb. osteogenesis_imperfecta is illness.