Simplify the following text for a Grade 5 native English-speaking person.
Original: It is represented by the great complex of ruin mounds known to the Arabs as Nuffar , written by the earlier explorers Niffer , divided into two main parts by the dry bed of the old Shatt-en-Nil ( Arakhat ) .
Simplified: It is divided into two main parts by the dry bed of the old Shatt-en-Nil ( Arakhat ) .