Assertion: princess theatre musical | /r/HasSubevent | such groundbreaking works
Facets:
value: as show boat
type: OTHER
Source sentences:
text: The Princess Theatre musicals (1915–1918) and other smart shows like Of Thee I Sing (1931) were artistic steps forward beyond revues and other frothy entertainments of the early 20th century and led to such groundbreaking works as Show Boat (1927) and Oklahoma!