Anchor: Quick as a flash his left hand, the hand which bore the big signet ring, was raised to his lips… .
Entailed: There was a big signet ring on his left hands.
Contradiction: He raised the ring to his lips to kiss it.
Contradiction: This assumption is not important at all.
Contradiction: There are people typing.
Contradiction: This city is entirely safe, there hasn't been any crimes committed here.
Contradiction: A boatman paddles a small boat