Instruct: Given a premise, retrieve hypotheses that are entailed by the premise.
Query: On February 1, 1990, during a spacewalk, Alexander Serebrov dons an experimental flying armchair that had been delivered to Mir with Kvant 2. Unlike U.S. astronauts, who flew untethered flights with a similar device, the Soviet cosmonaut remains attached to the station with a safety tether, since there is no space shuttle to pick him up in case of an emergency.
The astronauts remained firmly attached to base
The S-99 was built by the Soviet Union
The armchair had a steering wheel.
Polyakov spent a year and year and over two months in space.
Pavel Sergeyevich Alexandrov left Russia soon after his papers
Kasyanov works in the Kremlin
Anatoly Berezovoy made three flights into space.
Sergei Avdeyev stayed in space for less than five years
Emily Kasparov lived on a planet where oxygen was present
Svetlana Aleksandrovna Metkina still lives in Moscow 
The story follows the endeavors of a Soviet Mole in the British Intelligence agency.
The person assualted remains in critical condion.
Socks have been worn by cell
Some russians were caught
Socks have been worn by vegeta
He went to space on the shuttle.
Michael Allen Baker performed space walks
the s-99 was the 4th sub project by russia in the cold war
Socks have been worn by carter
segway was used by stalin
The asteroid did not kill the astronaut. 
There is a Russian based on the German Messerschmitt Me 163 "Komet".
The armchair had a horn.
The armchair had a air conditioner.
The armchair had turn signals.