Assertion: guarantee | /r/HasProperty | operative
Facets:
Source sentences:
text: But it’s not that easy: the skier must first pay $1 and register at the lodge as a beginner, intermediate, or expert; the guarantee is operative only if all lifts at the skier’s skill level exceed the ten minutes in any half-hour period; and skiers must check with a “ski hostess” at the end of the day to “win” a refund.