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Given a text, write a compressed version of it in a single sentence.

The installation of an FGD system requires a significant amount of labor. Approximately 80 percent of the labor is for construction of the system, and 20 -25 percent of the labor is for engineering and project management.
Output:
The installation of an FGD system requires a significant amount of labor. Approximately 80 percent of the labor is for construction of the system.