Assertion: lithium | /r/HasProperty | common
Facets:
value: for manic-depressive illness
type: PURPOSE
value: since the 1970s
type: TEMPORAL
value: on a per-atom basis
type: OTHER
Source sentences:
text: Lithium is about as common as chlorine in the Earth's upper continental crust , on a per-atom basis.
text: Lithium is a common medicine used to help calm mood for treating people with mental disorders.
text: Since the 1970s, lithium has been a common and effective treatment for manic-depressive illness, also known as .