Assertion: rain gutter | /r/HasProperty | optional
Facets:
Source sentences:
text: If your house is completely surrounded by concrete in the form of patios, walkways, or driveways , rain gutters might be optional, as the concrete serves as a protective layer between the runoff and the foundation.
text: , rain gutters might be optional, as the concrete serves as a protective layer between the runoff and the foundation.