Assertion: arsenic | /r/ObjectUse | used as poison
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: It has also been used as a pigment, a pesticide and a poison.
text: Arsenic was also used in various agricultural insecticides and poisons.
text: It is most well-known in liquid or powder form, in which it was once used to kill mice and other pests and is still sometimes used as a poison.
text: The Marsh test is a highly sensitive method in the detection of arsenic, especially useful in the field of forensic toxicology when arsenic was used as a poison.
text: Arsenic was also used in various agricultural insecticides and poisons.