sentences: a plant requires photosynthesis to survive
docs: photosynthetic_plant is autotroph. photosynthesis is process. photosynthetic_plant is plant_kingdom. photosynthesis is photo_chemical_process. general_photosynthesis is biological_energy_transfer. photosynthesis_in_plants is physiological_process. photosynthesis is chemical_process. plants has leaves_to_gather_light general_photosynthesis is production. photosynthesis is process_by_which_leaf_makes_food.