Task: Text Simplification
Input (English): the sutlej river -lrb- alternatively spelled as satluj river -rrb- -lrb- , , , , and -rrb- is the longest of the five rivers that flow through the historic crossroad region of punjab in northern india and pakistan.
Output (English): the sutlej river -lrb- sometimes spelled as satluj river -rrb- is the longest of the five rivers that flow through the historic crossroad region of punjab in northern inida and pakistan.