Assertion: pipe | /r/MadeOf | plastic
Facets:
Source sentences:
text: And, pipes are made of materials like metal, plastic, glass, ceramic, etc.
text: Present-day water-supply systems use a network of high-pressure pumps, and pipes in buildings are now made of copper, brass, plastic (particularly cross-linked polyethylene called PEX, which is estimated to be used in 60% of single-family homes), or other nontoxic material.