Assertion: spondylolisthesis | /r/HasProperty | categorized into different types
Facets:
value: officially
type: MANNER
value: by the wiltse classification system
type: OTHER
Source sentences:
text: Spondylolisthesis is categorized into different types, each of which has five grades of severity.
text: Spondylolisthesis is officially categorized into five different types by the Wiltse classification system: Dysplastic, Isthmic, Degenerative, Traumatic, and Pathologic.