Assertion: electrical wiring | /r/HasProperty | knob
Facets:
Source sentences:
text: While varying somewhat by area of the country in the U.S., Latin America, Europe, and other areas, there are recognizable generations of electrical wiring ( KNOB & TUBE, greenfield, armored cable or " BX" wiring, plastic or " NM/NMC" wiring), wiring materials (copper, tinned copper, aluminum, copper-plated aluminum).