user: Question: Which Loera has a Source of SurveyUSA, and a Date of May 16–May 18, 2008?
Columns: ['Source', 'Date', 'Goberman', 'Loera', 'Merkley', 'Neville', 'Novick', 'Obrist', 'Other/ Undecided']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['SurveyUSA', 'May 16–May 18, 2008', '2%', '2%', '34%', '7%', '37%', '2%', '17%']
SQL:

assistant: SELECT "Loera" FROM "Table" WHERE "Source" = 'SurveyUSA' AND "Date" = 'May 16–May 18, 2008';