Assertion: paved road | /r/CapableOf | use deep roadbeds of tamped rubble
Facets:
value: to ensure
type: PURPOSE
value: as an underlying layer
type: MANNER
Source sentences:
text: Roman roads varied from simple corduroy roads to paved roads using deep roadbeds of tamped rubble as an underlying layer to ensure that they kept dry, as the water would flow out from between the stones and fragments of rubble, instead of becoming mud in clay soils.