Assertion: star's field | /r/HasProperty | powerful
Facets:
value: sufficiently
type: DEGREE
Source sentences:
text: A black hole is an object with a gravitational field that is sufficiently powerful that it can prevent light from escaping.
text: Indirect observations are possible because the gravitational field of a black hole is so powerful that any nearby material - often the outer layers of a companion star - is caught up and dragged in.