Question: The 1987–88 Football League season was Birmingham City Football Club's 85th in the Football League and their 35th in the Second Division, they finished in 19th position in the division, the 1987–1988 Football League season was which ordinal number completed season? 
Sentence (from "1990–91 Birmingham City F.C. season"): They won the Football League Trophy, a cup competition open to clubs in the third and fourth tiers of the English football league system, defeating Tranmere Rovers 3–2 in the final at Wembley Stadium with goals from Simon Sturridge and two from John Gayle.
Relevant evidence: No