Assertion: polonium | /r/HasProperty | created
Facets:
value: artificially
type: MANNER
value: by bombarding bismuth
type: MANNER
Source sentences:
text: One is that Polonium is being created all the time as it is a decay product of the radioactive gas radon (which is itself a decay product of uranium).
text: It is artificially created by bombarding bismuth with neutrons.