Text: Presently, as a matter of policy, senders of parcels to residents in the Alaska Bush (which is not accessible by surface transportation) pay surface rates for mail that is transported by air in low volumes.
Entailment: Anybody who sends parcels to Alaska Bush pay surface rates for mail that is transported by air, as a matter of policy.
Contradiction: The policies state that senders of parcels to residents in the Alaska Bush pay air rates, as well as an extra fee.