Assertion: polio's symptom | /r/HasProperty | muscle weakness
Facets:
value: in some cases
type: TEMPORAL
Source sentences:
text: Major symptoms include muscle weakness, pain, fatigue and, in some cases, wasting (atrophy) of the muscles that were involved during the polio infection, typically the legs.
text: Symptoms include muscle weakness, cramps and pain, increased fatigue, and trouble breathing.