Question: what team did 1991-92 A.C. Fiorentina's german starlet last manage?
Sentence (from "1991–92 A.C. Fiorentina season"): The most significant event in Fiorentina's season was the arrival of Argentinian striker Gabriel Batistuta, who was to become Fiorentina's all-time topscorer during his nine years at the club.
Relevant evidence: No