Assertion: mountaintop removal mining | /r/CapableOf | execute fewer employees
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Source sentences:
text: Less expensive to execute and requiring fewer employees, mountaintop removal mining began in Appalachia in the 1970s as an extension of conventional strip mining techniques.
text: Less expensive to execute and requiring fewer employees, mountaintop removal mining began in Appalachia in the 1970s as an extension of conventional strip mining techniques.