Task: Wrong Candidate Generation
Input (English): Context: Rainwater from the roof is collected and funneled into a 25,000 gallon underground cistern . Wastewater from showers , sinks and toilets goes into underground purifying tanks and then into the cistern . The collected water then irrigates the land surrounding the house . Surrounding flowers and shrubs native to the area enable the property to blend into the surrounding rural landscape . 
Question: Why is rainwater being collected and moved into the cistern ? 
Correct Answer: The facility is trying to be carbon - neutral .
Output (English): The facility is trying to commercialize rain water .