human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Year Location, Mens Singles, Womens Singles, Mens Doubles, Womens Doubles
###Question: What is the place and when was the year when the women's doubles womens were Bai yang Niu Jianfeng?
gpt
SELECT Year Location FROM table WHERE Womens Doubles = Bai Yang Niu Jianfeng