Assertion: primary grape | /r/ObjectUse | used in brandy production
Facets:
value: historically
type: TEMPORAL
Source sentences:
text: To breed to the grape he used Ugni blanc (also known as Trebbiano) in Tuscany, the primary grape historically used in brandy production, and Rayon d'Or, a winter-hardy hybrid grape that was successfully used previously to breed Seyval blanc.