Assertion: duct | /r/HasProperty | spaced for example
Facets:
value: considerable distances apart
type: OTHER
value: because of the cost
type: CAUSE
Source sentences:
text: Such ducts are necessarily shallow in order to avoid excessive fill and because of the cost they are spaced considerable distances apart, for example, four to six feet.
text: Such ducts are necessarily shallow in order to avoid excessive fill and because of the cost they are spaced considerable distances apart, for example, four to six feet.