anchor: The total construction labor for an SCR system of 500 MWe is in the range of 333,000 to 350,000 man-hours.
positive: 333,0000 to 350,000 man-hours is the range for the total construction labor for a 500 MWe SCR system.
negative: The range of man-hours for constructing a 500 MWe SCR system is never more than 100,000.