Assertion: piano | /r/CreatedBy | well-paid craftsman
Facets:
value: for his wealthy patron
type: TRANSITIVE-OBJECT
Source sentences:
text: At the time of its origin around the year 1700, the piano was a speculative invention, produced by the well-paid craftsman and inventor Bartolomeo Cristofori for his wealthy patron Ferdinando de Medici, Grand Prince of Florence.