Assertion: polio's form | /r/HasProperty | rare
Facets:
value: very
type: DEGREE
Source sentences:
text: This most serious form of the disease is rare.
text: This most serious form of the disease is rare.
text: This form is very rare and manifests as agitation, confusion, stupor, and coma.
text: This form is actually quite rare, however, and it is steadily decreasing.
text: This most serious form of the disease is rare.