Assertion: wrath's mother | /r/CapableOf | make her first appearance
Facets:
value: on the simpsons
type: LOCATION
value: in this episode
type: TEMPORAL
Source sentences:
text: Principal Skinner's mother, Agnes Skinner, made her first appearance on The Simpsons in this episode, although her voice was a bit different from what the viewers became used to in the later episodes of the show.