Assertion: isthmic spondylolisthesis | /r/CapableOf | start with crack
Facets:
value: at the point
type: TEMPORAL
value: in one of the vertebrae
type: LOCATION
Source sentences:
text: Isthmic spondylolisthesis starts with a crack in one of the vertebrae, usually at the point at which the lower (lumbar) part of the spine joins the tailbone (sacrum).