Anchor: The senior security officer at this organization noted that, when rules such as this are aimed at users, it is especially important that they be stated in clearly understandable, relatively nontechnical language.
Entailed: It is important to state rules clearly and in nontechnical language when aiming them at users.
Contradiction: There is no importance noted by the senior security officer when stating rules aimed at users.
Contradiction: A black dog is outside on a hot summer day.
Contradiction: Pick up service at no charge. 
Contradiction: The boy is playing basketball.
Contradiction: A woman is watching a child.