Assertion: organized baseball | /r/HasProperty | amateur
Facets:
value: officially
type: MANNER
value: since the cuban revolution
type: TEMPORAL
Source sentences:
text: The first formal baseball league outside of the United States and Canada was founded in 1878 in Cuba, which maintains a rich baseball tradition and whose national team has been one of the world's strongest since international play began in the late 1930s (all organized baseball in the country has officially been amateur since the Cuban Revolution).