Anchor: The unit costs (expressed in seconds and normalized as explained) are estimated by an engineering model19 to allow for simulations over variations of traffic.
Entailed: The unit costs are expressed in seconds. 
Contradiction: Unit costs are expressed in hours. 
Contradiction: The collective knowledge slows them down and leaves them with less time for their cases.
Contradiction: A man is leaning next to a coffin.
Contradiction: The people are moving furniture in.
Contradiction: Three women are waiting in the desert while wearing short dresses.