user: Question: The 1977 Japanese Grand Prix in the Open Wheel discipline has what session?
Columns: ['Discipline', 'Circuit', 'Event', 'Session', 'Cause']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Touring car racing', 'Guia Circuit', '2012 CTM Macau Touring Car Cup', 'Qualifying', 'Crash']
SQL:

assistant: SELECT "Session" FROM "Table" WHERE "Discipline" = 'Open Wheel' AND "Event" = '1977 Japanese Grand Prix';