a yeast cell is a kind of single cell organism
yeast is single_celled_plant. single_celled_zygote is single_cell_diploid_organism. single_cell_diploid_organism is single_cell_organism. single_cell_organism is not cell. single_cell_organism is cell. yeast is not single_cell_organism. single_cell_organism is not microorganism. yeast is not single_celled_plant. single_cell_organism is microorganism. yeast is single_cell_organism.