Assertion: oo scale | /r/HasProperty | 4mm
Facets:
Source sentences:
text: It is 1:76th scale or 4mm to the foot.
text: HO is the most popular model railroad scale in both continental Europe and North America, whereas OO scale (4 mm:foot or 1:76.2 with 16.5 mm track) is still dominant in the United Kingdom.