Question: Kevin Hales played as a midfielder for Leyton Orient and a football club founded in what year?
Sentence (from "2015–16 Leyton Orient F.C. season"): The 2015–16 Leyton Orient F.C. season is the 117th season in the history of Leyton Orient Football Club, their 100th in the Football League, and the first season of their return to the fourth tier of the English football league system.
Relevant evidence: No