sentences: photosynthesis is a kind of process
docs: photosynthesis is process. photosynthesis is synthesis. photosynthesis is photo_chemical_process. general_photosynthesis is biological_energy_transfer. photosynthesis_in_plants is physiological_process. photosynthesis is chemical_process. oxygenic_photosynthesis is general_photosynthesis. general_photosynthesis is biochemical_synthesis. general_photosynthesis is production. photosynthesis is process_by_which_leaf_makes_food.