Assertion: disc | /r/HasProperty | parrot
Facets:
Source sentences:
text: Article on Magnavox machine (June 1920), Ceramiphone machine ad, Empire talking machine (1920), Talking Book Corporation advertisement dated August 1920 (cardboard cartoons with discs--Parrot, Dancing Girl, Tired Baby, etc.), Swanson portable machine (1922), article on Billy Murray and Henry Burr having success on stage (1920).