Assertion: oil pipeline's diameter | /r/HasProperty | 510 mm
Facets:
Source sentences:
text: The Big Inch was a 24-inch (610 mm) pipeline for crude oil; it ran from the East Texas Oil Field at Longview, Texas, to Norris City, Illinois, and onto Phoenixville, Pennsylvania, from where it branched into 20-inch-diameter (510 mm) segments.
text: The Little Big Inch, a largely parallel 20-inch-diameter (510 mm) line intended for refined products, ran from Beaumont, Texas, to Little Rock, Arkansas, where it joined the path of the Big Inch, making use of the same pumping stations.