sentences: in the photosynthesis process carbon dioxide has the role of raw material
docs: photosynthesis is process. photosynthesis is synthesis. general_photosynthesis is physiological_function. carbon_dioxide is one_waste_product_of_metabolism. photosynthesis is photo_chemical_process. photosynthesis_in_plants is physiological_process. photosynthesis is chemical_process. construction is creating_from_raw_materials. general_photosynthesis is production. photosynthesis is process_by_which_leaf_makes_food.