sentences: a plant absorbs carbon dioxide from the air to perform photosynthesis
docs: photosynthesis is process. photosynthesis_in_plants is oxygenic_photosynthesis. general_photosynthesis is physiological_function. photosynthesis is photo_chemical_process. 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. photosynthesis_in_cam_plants is photosynthesis_in_plants.