Assertion: als's symptom | /r/HasProperty | stiffness
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Early symptoms of ALS usually include muscle weakness or stiffness.
text: The earliest symptoms include muscle twitching, cramping, stiffness, or weakness.
text: The early symptoms of ALS include muscle weakness, tightness or stiffness, and cramps.
text: The earliest symptoms include muscle twitching, cramping, stiffness, or weakness.