Assertion: disease's symptom | /r/HasProperty | tremor
Facets:
Source sentences:
text: Hallmark symptoms of this disease include tremors and gait and balance problems.
text: The brain changes caused by Parkinson’s disease begin in a region that plays a key role in movement, leading to early symptoms that include tremors and shakiness, muscle stiffness, a shuffling step, stooped posture, difficulty initiating movement and lack of facial expression.