Anchor: effectiveness and results audits, economy and efficiency audits, operational audits, and value-for-money audits.
Entailed: There are many types of audits.
Contradiction: There is only one type of audit.
Contradiction: The man and boy are racing go-carts at their local family entertainment center.
Contradiction: Occasionally they try to improve upon what he used to be.
Contradiction: Machines do not consume power to perform activities. 
Contradiction: There are people outside.