Complex sentence: The Punjab is named for the five rivers by which it is watered from the Persian word "Punj" (five) and "Ab" (water), the rive are Jhelum, Chenab, Ravi, Beas and Sutlej, all tributaries of the Indus.
Split into simpler sentences: The Punjab is named for the five rivers by which it is watered, from the Persian words "Punj" (five) and "Ab" (water). The rivers are Jhelum, Chenab, Ravi, Beas and Sutlej, all tributaries of the Indus.