Assertion: ankylosing spondylitis's condition | /r/Causes | stiffness
Facets:
value: along the length of the spine
type: LOCATION
Source sentences:
text: Because this condition can cause inflammation, stiffness, and joint pain, it’s important that you don’t overdo it and learn how to recognize your limitations.
text: The condition causes pain, stiffness, and discomfort along the length of the spine.