Assertion: slate | /r/HasProperty | long-lasting
Facets:
value: on earth
type: LOCATION
value: with a lifespan of a century
type: OTHER
Source sentences:
text: Slate quarried for roofing is exceptionally dense, durable and long-lasting, with a lifespan of a century or longer.
text: Slate is a timeless roof material, allowing it to be used for both contemporary and more traditional period properties.
text: Slate is a heavy material, and it is the longest lasting roofing material on earth.
text: Slate is very durable and long-lasting.