Assertion: matter's matter | /r/HasProperty | material
Facets:
value: in a book
type: LOCATION
Source sentences:
text: In contrast with normal matter, dark matter is material that is non-luminous.
text: Matter is any material that interacts with gravity as normal matter does—becoming clumped into galaxies and galaxy clusters, for example.
text: You’ll remember that the front matter is all of the material that comes before the central story – or body text – in a book.