Assertion: foil | /r/HasProperty | required for international competitions
Facets:
value: to prevent the blade
type: PURPOSE
Source sentences:
text: Foil have standardized, tapered, rectangular blades in length and cross-section that are made of tempered and annealed, low-carbon steel—or maraging steel as required for international competitions To prevent the blade from breaking or causing harm to an opponent, the blade is made to bend upon impact with its target.