id	keyword
iajs-3579	river
iajs-3579	water
iajs-3579	tigris
iajs-3579	concentration
iajs-3579	phosphate
iajs-3579	nutrient
iajs-3579	baghdad
iajs-3579	temperature
iajs-3579	nitrate
iajs-3579	sites
iajs-3579	ecosystems
iajs-3579	sci