Assertion: railway | /r/CapableOf | use asphalt pavement
Facets:
value: in order to keep dirt
type: PURPOSE
value: below the ballast
type: LOCATION
value: in order to keep moisture
type: PURPOSE
Source sentences:
text: Some railroads are using asphalt pavement below the ballast in order to keep dirt and moisture from moving into the ballast and spoiling it.