Question: BALR. is a brand co-founded by which İstanbul Başakşehir winger?
Sentence (from "Erli Çupi"): Erli Çupi (born 3 February 1997) is an Albanian professional footballer who plays as a winger for Turkish club İstanbul Başakşehir U21 and the Albania national under-21 football team.
Relevant evidence: No