Assertion: willis tower | /r/CapableOf | host skyrise chicago
Facets:
value: annually
type: TEMPORAL
value: as a charity event
type: MANNER
value: since 2009
type: TEMPORAL
Source sentences:
text: Annually, since 2009, the Willis Tower has hosted SkyRise Chicago, the world's tallest indoor stair climb, as a charity event benefiting Shirley Ryan AbilityLab, where participants can (legally) climb the Willis Tower's 103-story staircase.