Complex sentence: Robenhausen is a locality of the municipality of Wetzikon in the canton of Zürich in Switzerland, and the wetland "Robenhauser Ried" belongs to the protected area surrounding "Pfäffikersee".
Split into simpler sentences: Robenhausen is a locality of the municipality of Wetzikon in the canton of Zürich in Switzerland. The wetland "Robenhauser Ried" belongs to the protected area surrounding "Pfäffikersee".