Question: Who choreographed the step, also used in the Grapevine dance, that is a dance set to the song 'Electric Boogie"?
{'answer': 'Richard L. "Ric" Silver', 'supporting_facts': [['Grapevine (dance move)', 0], ['Grapevine (dance move)', 1], ['Grapevine (dance move)', 2], ['Electric Slide', 0], ['Electric Slide', 1]]}