Assertion: batman's nemesis | /r/HasProperty | foil
Facets:
value: often
type: DEGREE
Source sentences:
text: Often a nemesis is a superhero's doppelganger or foil (e.g., Sabretooth embraces his savage instincts while Wolverine tries to control his; Batman is dark, taciturn, and grim, while the Joker is colorful, loquacious, and flamboyant).