Assertion: interstate's lane | /r/HasProperty | 12 feet wide
Facets:
Source sentences:
text: The technical standards for the highways were highly regulated—lanes had to be 12 feet wide and shoulders 10 feet wide, the bridges had to have 14 feet of clearance, grades had to be less than 30 percent, and the highway had to be designed for travel at 70 miles an hour.
text: The lanes must be at least 12 feet wide.