Assertion: supermassive black hole | /r/HasProperty | common
Facets:
value: at the center of ultracompact dwarfs
type: LOCATION
value: pretty
type: DEGREE
Source sentences:
text: Scientists think tiny black holes and supermassive black holes are pretty common, but that there aren't a whole lot of medium-size black holes.
text: We’ve only known of these tiny galaxies for a relatively short time, so discovering more examples could help astronomers determine if supermassive black holes are common or rare at the center of ultracompact dwarfs.