Assertion: ankylosing spondylitis | /r/CapableOf | begin at young age
Facets:
value: from the teens
type: TEMPORAL
value: often
type: TEMPORAL
Source sentences:
text: Ankylosing spondylitis often begins at a young age (from the teens to the third decade of life) and is more common in men (about two to three times more common than in women).