user: Question: Who lost on July 20 with 42607 attending?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['July 1', 'Diamondbacks', '7–4', 'Good (3–2)', 25209.0, '43–42']
SQL:

assistant: SELECT "Loss" FROM "Table" WHERE "Attendance" > 42607.0 AND "Date" = 'July 20';