The water is being used up mostly by farmers who need water to irrigate their crops.
(The water; is being used up mostly; by farmers) (farmers; need; water; to irrigate their crops) Context(farmers need,List([37, 53))):(farmers; need water to irrigate; their crops)
farmers need,List([37, 53))
The water farmers farmers
is being used up mostly need need water to irrigate
by farmers
water to irrigate their crops
their crops