Anchor: Just as the Bosphorus separates Asia from Europe, so the inlet called the Golden Horn separates the old Istanbul from the new.
Entailed: Istanbul has an old and a new section.
Contradiction: Asia is not separated from Europe by anything.
Contradiction: The bronze that decorated the entrance was thrown away and never seen again.
Contradiction: It was too expensive to keep him from getting killed.  
Contradiction: Hanson was idle for most of the duration
Contradiction: The Britons went to the church.