Assertion: arsenic | /r/HasProperty | neither a metal
Facets:
value: frequently
type: TEMPORAL
Source sentences:
text: Arsenic is neither a metal nor a non-metal but instead joins a select but rather ill defined group of elements called the metalloids.
text: Arsenic is classified chemically as a metalloid, having both properties of a metal and a nonmetal; however, it is frequently referred to as a metal.