Question: Robert "Bob" Schrijber, is a Dutch former mixed martial artist and kickboxer, his most famous student at the moment is which UFC fighter, a Dutch mixed martial artist who competes as a heavyweight in the UFC?
Sentence (from "Frank Shamrock"): Frank Shamrock (born Frank Alisio Juarez, III; December 8, 1972) is an American former mixed martial artist.
Relevant evidence: No