Question: Which United States Airforce installation has a large cantilever hangar and is located in northeastern Maine?
Sentence (from "Air 500"): In 1995 the airport was privatized and came under the direction and control of the GTAA (Greater Toronto Airport Authority) and Dennis Chadala simultaneously acquired Hangar #7, the newest hangar facility at the north end of the Pearson Airport off Derry Road with 40 years remaining on the current land lease.
Relevant evidence: No