CREATE TABLE table_name_70 (model_number VARCHAR2, part_number_s_ VARCHAR2)

What is Model Number, when Part Number(s) is AY80609003987AB?
SELECT model_number FROM table_name_70 WHERE part_number_s_ = "ay80609003987ab"
SELECT "model_number" FROM "table_name_70" WHERE "ay80609003987ab" = "part_number_s_"