What is the yeast ortholog that has a subpathway of GGR and GeneCards entry CETN2?
CREATE TABLE "ner_associated_genes" (
  "human_gene_protein" text,
  "mouse_ortholog" text,
  "yeast_ortholog" text,
  "subpathway" text,
  "gene_cards_entry" text
);
SELECT "yeast_ortholog" FROM "ner_associated_genes" WHERE "subpathway"='ggr' AND "gene_cards_entry"='cetn2';