Instruct: Given a premise, retrieve a hypothesis that is entailed by the premise.
Query: The Boulton Paul Balliol and Sea Balliol were monoplane military advanced trainer aircraft built for the Royal Air Force (RAF) and the Royal Navy Fleet Air Arm (FAA) by Boulton Paul Aircraft. Developed in the late 1940s the Balliol was designed to replace the North American Harvard trainer and used the Rolls-Royce Merlin engine, with the Sea Balliol a naval version for deck landing training.
The Boulton Paul Balliol is able to fly in the sky. 
Belgian Tripartite-class minehunters was used as a design for American warships. 
the North American Harvard was not obsolete when it was replaced.
The USFC "Fish Hawk" was a ship built for the purpose of research. 
the Royal Air Force (RAF) and the Royal Navy Fleet Air Arm  often share resources.
The Sea Balliol went out to sea over 100 times.
the MiG-31 uses the R-33
The japanese used the Sea Balliol
The airforce was used
The Avro 523 Pike was inspired by Japanese airplanes
Boulton Paul Aircraft did not originally develop these planes to be used by the Royal Air force.
the Rolls-Royce Merlin engine was the only engine that would fit these planes.
Fish hawk was a research boat in America, and operated for under 50 years
the Rolls-Royce Merlin engine was the most sophisticated engine of the 1930s.
The Imperial Japanese Navy Air Service's pilots used American pilot traning programs
The Avro 523 Pike was a deadly aircraft
There were two battleships made for a navy in the early twentieth century.
A Heavy Patrol Squadron of the US Navy was coded as Landplane.
The Proteus Design Suite is used by US marine engineers
The Proteus Design Suite is used by the US air force to design
Fish Hawk was a ship used to fight off pirates
The US Navy oversaw three redesignations of the initially branded Bombing Squadron.
The Boulton Paul Balliol was the most well known aircraft.
The Harvard trainer was used for 50 years.
the North American Harvard was not obsolete when it was replaced.