user: Question: For the team with a class of GT2 and 3:59.820 on day 2, what was the behind?
Columns: ['Team', 'Class', 'Day 1', 'Day 2', 'Behind']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Team Peugeot Total', 'LMP1', '3:18.513', '3:20.566', 'Leader']
SQL:

assistant: SELECT "Behind" FROM "Table" WHERE "Class" = 'GT2' AND "Day 2" = '3:59.820';