human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Season, Season Premiere, Season Finale, Winner, Runner-up, Number of Contestants, Winner's Country, Runner Up's Country
###Question: What season's premiere had puerto rico winning on May 20, 2012?
gpt
SELECT Season Premiere FROM table WHERE Winner's Country = puerto rico AND Season Finale = may 20, 2012