Assertion: blue wire | /r/ObjectUse | used as traveler
Facets:
value: for three-
type: TEMPORAL
value: for four-way switches
type: PURPOSE
value: most often
type: DEGREE
Source sentences:
text: Then, blue wires are most often used as travelers for three- or four-way switches (for instance, if you have switches at the top and bottom of a staircase that control the same light, that’s a three-way switch).