Assertion: orchestra | /r/CapableOf | celebrate its 21st birthday
Facets:
value: the following year
type: TEMPORAL
Source sentences:
text: The following year the orchestra celebrated its 21st birthday, giving a series of concerts at the Festival Hall and the Albert Hall in which Boult was joined by guest conductors including Paul Kletzki, Jean Martinon, Hans Schmidt-Isserstedt, Georg Solti, Walter Susskind and Vaughan Williams.