Assertion: batman's adventure | /r/CapableOf | depict first appearance
Facets:
value: increasingly
type: DEGREE
value: of an insane, murderous joker
type: OTHER
value: since the early golden age
type: TEMPORAL
Source sentences:
text: Batman's adventures also become somewhat darker and more grim during this period, depicting increasingly violent crimes, including the first appearance (since the early Golden Age) of an insane, murderous Joker, and the arrival of Ra's Al Ghul.
text: Batman's adventures also become somewhat darker and more grim during this period, depicting increasingly violent crimes, including the first appearance (since the early golden age) of the Joker as a homicidal psychopath, and the arrival of Ra's al Ghul, a centuries-old terrorist who knows Batman's secret identity.