endangered cells top in kinds
endangered_species is not endangered. endangered_species is endangered. hiv_cell_invasion is viral_invasion_of_cell. endangered_species is species. killer_t_cell is not t_cell. one_kind_of_cell is prison_cell. large_cell is cell. killer_t_cell is t_cell. hiv_cell_invasion is not viral_invasion_of_cell. one_kind_of_cell is not prison_cell.