Complex sentence: AE Giannena is one of the mean team of the city after famouse team team of PAS Giannina and is currently in 3th division trying to be promote to Greece's Second Division.
Split into simpler sentences: AE Giannena is one of the main teams of the city, second to the famous team of PAS Giannina. They are currently in 3th division, trying to gain promotion to Greece's Second Division.