Assertion: dark matter | /r/HasProperty | dark
Facets:
value: perfectly
type: DEGREE
Source sentences:
text: Dark matter is dark: It emits no light and cannot be seen directly, so it cannot be stars or planets.
text: Dark matter is called dark because it does not appear to interact with interact with the electromagnetic force, which means it doesn't emit light, and so is very hard to detect.
text: This is fairly obvious since dark matter is dark.
text: The basic idea [of our work] is quite simple: can you say that dark matter is perfectly dark?"