Assertion: cider | /r/CapableOf | involve expanding the planting of apple trees
Facets:
value: in the 9th century
type: TEMPORAL
Source sentences:
text: The Greek geographer and traveler Strabo (64/63 BC-24 AD) mentioned “zythos,” a precursor of cider and the profusion of apple trees in the region; Celtic Gauls and Romans provided the know-how and Charlemagne had standing orders for brewers to continuously provide him with cider, which involved expanding the planting of apple trees in the 9th century.