Analyze if the hypothesis is in clear contradiction to the premise. Premise: All five hijackers passed through the Main Terminal's west security screening checkpoint; United Airlines, which was the responsible air carrier, had contracted out the work to Argenbright Security. Hypothesis: United Airlines contracted security screening work out to Argenbright Security.
All five hijackers passed through the Main Terminal's west security screening checkpoint; United Airlines, which was the responsible air carrier, had contracted out the work to Argenbright Security.###United Airlines contracted security screening work out to Argenbright Security.