Assertion: aqueduct's conduit | /r/MadeOf | terra-cotta pipe
Facets:
value: mostly
type: DEGREE
Source sentences:
text: Only a portion of Rome’s aqueduct system actually crossed over valleys on stone arches (50 km out of a total of about 420 km); the rest consisted of underground conduits made mostly of stone and terra-cotta pipe but also of wood, leather, lead, and bronze.