Complex sentence: It is a part of the Weser-Ems Halle multi-sporting complex, which contains two main arena halls, the small Kleine EWE Arena, and the large Large EWE Arena.
Split into simpler sentences: It is a part of the Weser-Ems Halle multi-sporting complex. It contains two main arena halls, the Small EWE Arena, and the Large EWE Arena.