Assertion: mantle | /r/HasProperty | instrumental
Facets:
Source sentences:
text: Mantel was instrumental in the careers of several huge wrestling stars of the nineties, including the Blade Runners, who later went on to achieve fame as Sting and The Ultimate Warrior.
text: Mantel was instrumental in several successful creations for the company, most notably the TNA Knockouts division that helped to reinvigorate interest in women's wrestling in the United States.