sentences: the excretory humans performs genetics
docs: urinating is excreting. ets2 is human_gene. excreting is biological_transport. erc2 is human_gene. kidney is excretory_organ. human_pancreatic_cell is human_cell. human_cells is biological_cells. pancreas is internal_human_organ. animal_excreting is excreting. excretory_organ is internal_organ.