Question: Steven Levert "Steve" Clarkson, is an American football coach, Clarkson has tutored Ben Roethlisberger, an American football quarterback for which sports organization, of the National Football League (NFL)?
Sentence (from "Ben Roethlisberger"): Benjamin Todd Roethlisberger Sr. ( ; born March 2, 1982), nicknamed Big Ben, is an American football quarterback for the Pittsburgh Steelers of the National Football League (NFL).
Relevant evidence: Yes