Assertion: ankylosing spondylitis | /r/CapableOf | affect peripheral joints
Facets:
value: primarily
type: DEGREE
Source sentences:
text: It is an inflammatory disorder that primarily affects the axial skeleton, peripheral joints and extra-particular structures.
text: Ankylosing spondylitis, also known as Marie-Strümpell disease or Bechterew disease, affects some of the peripheral joints, such as the hip; but its principal location is in the spine and sacroiliac joints.