Assertion: fermium | /r/HasProperty | artificial element
Facets:
Source sentences:
text: Fermium (Fm and atomic number 100) is an artificial element that has been made in only small quantities by bombarding plutonium.
text: Fermium is an artificial element; fermium exist in traces only in the debris of thermonuclear explosions.
text: Fermium is an artificial element; the existence of fermium in the Universe was not still proven.
text: Fermium (Fm and atomic number 100) is an artificial element that has been made in only small quantities by bombarding plutonium.