user: Question: What was the compression ration when the engine was Wasp Jr. T1B2?
Columns: ['Engine', 'Power, continuous', 'Critical altitude This is the highest altitude at which the engine can achieve its full continuous power rating. Above this altitude, power falls off with height as with a naturally aspirated engine . See Supercharger#Altitude effects for details.', 'Power, takeoff', 'Compression ratio', 'Supercharger gear ratio', 'Octane rating', 'Dry weight']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Wasp Jr. A', 'hp (kW) at 2,000 RPM', 'sea level', 'same', '5.0:1', '7:1', '68', 'lb (kg)']
SQL:

assistant: SELECT "Compression ratio" FROM "Table" WHERE "Engine" = 'Wasp Jr. T1B2';