Predicate: protrusion
Roleset id: protrusion.01 , Sticking out, vncls: 47.6, framnet:
protrusion.01: protrude.01
Roles:
        Arg1: Thing protruding (vnrole: 47.6-theme)
        Arg2: Source, sticking out of what (vnrole: 47.6-location)
Example: Arg1
        person: ns,  tense: ns,  aspect: ns,  voice: ns,  form: ns
        Spinal cord and nerve root compression may result from degeneration, disk protrusion, or trauma.
        Arg1: disk
        Rel: protrusion