Task: Named Entity Recognition
Input (English): Acid rain makes waters acidic. Causes them to absorb aluminum from soil. The water runs off from the soil into lakes, streams, etc. Fish and their eggs die. Frogs and plants die. Insects and other wildlife die. The ecosystem is out of balance, causing further problems. 
Output (English): water ; acidic water ,aluminum ,fish and their eggs ,frogs and plants ,insects and other wildlife