user: Question: Name the coach for May 20, 2010
Columns: ['Season', 'Episode', 'Episode Summary', 'Premier date', 'External Link', 'Coach']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [10.0, 1.0, 'Angelica is made into a pageant queen.', 'February 21, 2009', 'Full Episode', 'Yolanda Makle']
SQL:

assistant: SELECT "Coach" FROM "Table" WHERE "Premier date" = 'May 20, 2010';