Question: Who is the Italian teammate of the four-time 500cc motorcycle World Champion who won the title in 1956, 1958, 1959, and 1960
Sentence (from "John Surtees"): He was a four-time 500cc motorcycle World Champion – winning that title in 1956, 1958, 1959 and 1960 – the Formula One World Champion in 1964, and remains the only person to have won World Championships on both two and four wheels.
Relevant evidence: Yes