Question:  The Rotor is an amusement park ride first demonstrated in 1949 but has been surpassed by an amusement ride designed and manufactured by who?  
Sentence (from "Dragon Coaster (Playland)"): It was designed and built by legendary amusement ride creator Frederick Church, who also was the co-inventor of the Racing Derby, another famous early 20th century amusement park ride.
Relevant evidence: No