Anchor: The most common service consideration would involve the number of days to delivery, but mailers can also be interested in achieving delivery on a certain date or even in reducing the risk that the piece is lost in the mail.
Entailed: Mailers can deliver on a certain day so the mail not lost.
Contradiction: Mailers can only deliver on certain days, no matter when the mail was sent.
Contradiction: The company went bankrupt within ten years.
Contradiction: People are walking under some very large sculptures.
Contradiction: There is a clean man jumping.
Contradiction: Definitely not.