Assertion: advent | /r/HasProperty | the 4-week period
Facets:
value: prior to christmas
type: TEMPORAL
Source sentences:
text: Advent, from the Latin word adventus meaning arrival, is the 4-week period prior to Christmas.
text: Advent is a four-week period that marks the beginning of the Christmas season.
text: Advent is a period of four weeks leading up to Christmas.