Assertion: polonium | /r/HasProperty | excluded
Facets:
value: from that list
type: OTHER
Source sentences:
text: Astatine was never a metalloid, and polonium has been included and is now excluded from that list even though it touches the "stair-step" line.
text: Astatine was never a metalloid, and polonium has been included and is now excluded from that list even though it touches the "stair-step" line.