e/School of Ballooning

Information
has gloss	eng: The School of Ballooning was a training and test centre for British Army experiments with airships. It was established at Chatham in Kent in 1888. The School moved to Stanhope Lines, Aldershot in 1890 when a balloon section and depot were formed as permanent units of the Royal Engineers establishment. The School was sometimes known as the Balloon Factory.
lexicalization	eng: School of Ballooning
instance of	(noun) large tough nonrigid bag filled with gas or heated air balloon