For example, the fields of Western farmers feed the United States and many other parts of the world, and India's irrigation systems have enabled that country to be self-sufficient in food production since 1974. In addition, in many parts of the world dams have helped to remedy life-threatening problems such as poverty from lack of economic development, famine as a result of drought, devastation from floods, and continued disease from lack of potable water supplies.
Fields of American farmers feed the world 
( z1 feed :ARG0 ( z2 field :location-of ( z3 person :ARG0-of ( z4 farm ) :mod ( z5 country :name ( z6 name :op "America" ) ) ) ) :ARG2 ( z7 world ) )