Anchor: Delivery firms with lower costs than the Postal Service would emerge to serve them and the Postal Service could hand off its unprofitable mail to them.
Entailed: The Postal Service could hand off its unprofitable mail to lower cost firms.
Contradiction: It is impossible for firms to operate with lower costs than the Postal Service.
Contradiction: A few people are listening to music at a house party.
Contradiction: Two kids dressed in brightly colored shirts dance on a roof.
Contradiction: Rowboats are not available for rent at Derwent Water.
Contradiction: A man and a woman are sitting down outside.