Complex sentence: The Vembanad wetland system covers an area of over 1512 km², and is bordered by Alappuzha, Kottayam, and Ernakulam districts.
Split into simpler sentences: The Vembanad wetland system covers an area of over 1512 km². The lake is bordered by Alappuzha, Kottayam, and Ernakulam districts.