Question: Billie Lou Watt, was an actress in theater and television, including several voice acting roles for commercials, anime and animated series, she's known for playing Elsie the Cow, a character, for which cartoon cow developed as a mascot for which organization, in 1936, to symbolize the "perfect dairy product"? 
Sentence (from "Elsie the Cow"): Elsie the Cow is a cartoon cow developed as a mascot for the Borden Dairy Company in 1936 to symbolize the "perfect dairy product".
Relevant evidence: Yes