Anchor: Visitors must travel here, by boat, as an excursion from a surrounding island, alighting at a small jetty beside the ancient port, now silted up.
Entailed: Tourists must arrive by boat from a nearby island.  
Contradiction: Tourists can fly to this location without the aid of a boat.  
Contradiction: He doesn't think there are many authors.
Contradiction: Humans fighting
Contradiction: You should avoid any kind of tea ceremony.
Contradiction: You can pay more to have a massage.