id	keyword
binhm-621	r r
binhm-621	river
binhm-621	arm
binhm-621	tigris
binhm-621	tharthar
binhm-621	copepoda
binhm-621	tigris river
binhm-621	index
binhm-621	site
binhm-621	r ac
binhm-621	species
binhm-621	et al
binhm-621	water
binhm-621	values
binhm-621	confluence