Assertion: ballet | /r/CapableOf | stag at the mariinsky
Facets:
Source sentences:
text: The editor-publisher of the Saint Petersburg Gazette, Sergei Khudekov, himself a ballet expert and noted for co-authoring the librettos for several ballets staged at the Mariinsky, was one of several critics who complained that the Ivanov/Gerdt choreography was of poor quality, and that the libretto was extremely slight.