Assertion: escalator | /r/HasProperty | installed in pair
Facets:
value: with an up escalator
type: OTHER
value: often
type: TEMPORAL
Source sentences:
text: Escalators are often installed in pairs, with an up escalator and a down escalator adjacent to each other, while a single escalator may be changed to go up or down according to the direction of heavier traffic at different times of the day.