Assertion: black hole's matter | /r/HasAspect | total energy
Facets:
Source sentences:
text: The only catch is that they have to be made of so-called "exotic" matter, which has a total energy which is negative.
text: The only catch is that they have to be made of so-called "exotic" matter, which has a total energy which is negative.
text: The only catch is that they have to be made of so-called "exotic" matter, which has a total energy which is negative.
text: The only catch is that they have to be made of so-called "exotic" matter, which has a total energy which is negative.