Complex sentence: Panellinios G.S. BC (in Greek: ΠΑΝΕΛΛΗΝΙΟΣ Γ.Σ. KAE), commonly known as Panellinios BC is a professional basketball club located in Athens, Greece and founded in the year 1929, making it one of the oldest basketball clubs in Europe.
Split into simpler sentences: Panellinios G.S. BC (in Greek: ΠΑΝΕΛΛΗΝΙΟΣ Γ.Σ. KAE), commonly known as Panellinios BC, is a professional basketball club that is located in Athens, Greece. The club was founded in the year 1929, making it one of the oldest basketball clubs in Europe.