Assertion: bismuth | /r/HasProperty | unusual
Facets:
value: among the heavy metals
type: OTHER
Source sentences:
text: Bismuth is unusual in that it expands when it hardens, similar to ice.
text: Among the heavy metals, Bismuth is unusual in that its toxcity is much lower than that of its neighbors in the periodic table such as Lead, Thallium, and Antimony.