For thousands of years, its waters have flooded the banks of the river annually, depositing a fertile and nutrient-rich soil that's ideal for agriculture.
(its waters; have flooded; the banks of the river; T:annually; T:For thousands of years) (a fertile and nutrient-rich soil; 's; ideal for agriculture)
its waters a fertile and nutrient-rich soil
have flooded 's
the banks of the river T:annually T:For thousands of years
ideal for agriculture