Complex sentence: The Lybid has a number of small tributaries, the most notable being the Khreschatyk River, running parallel to modern Kiev's main street, Khreschatyk, and entering the Lybid from the left.
Split into simpler sentences: The Lybid has a number of small tributaries, the most notable being the Khreschatyk River. It runs parallel to modern Kiev's main street, Khreschatyk, and enters the Lybid from the left.