Original sentence: Approximately 12000-15000 supporters fill the stadium.In Khazar Lankaran FC home matches the stadium are mostly full with supporters.In other matches of Premier League, although there are many derbies in capital Baku, the highest attendance never rise to 1000 or higher.Khazar Lankaran Football Club's supporters are known as the best supporters of Azerbaijan.Since its creation 2 members of "FIRTINA" have been elected as board member and Vice President of Khazar Lankaran FC.The most popular Fan Club of Azerbaijan is "FIRTINA" (means "Storm") which is the first independent and well organised in country.This supporter club has outstanding contributions to its club
Edited sentence: It is also first independent supporter club in Azerbaijan and two of their members have been elected as board member and vice president of Khazar Lankaran.Khazar Lankaran have one of the biggest number of supporters population alongside Neftchi Baku PFC in Azerbaijan.There are also many groups supporting Khazar Lankaran but club's main fan base known as Fırtına (Storm)