Complex sentence: Kovylkino (;) is a town in the Republic of Mordovia, Russia, located southwest of Saransk on the left bank of the Moksha River (a tributary of the Oka).
Split into simpler sentences: Kovylkino (;) is a town in the Republic of Mordovia, Russia. It is located south-west of Saransk on the left bank of the Moksha River (a tributary of the Oka).