Anchor: With a great thump on the table, Poirot demolished his carefully built up edifice. 
Entailed: Poirot demolished the edifice on the table with a thump.
Contradiction: The edifice continued to stand despite being thumped.
Contradiction: The women are in deep water.
Contradiction: Details are in the Section 812 study.
Contradiction: One person carrying bag of blue objects, followed by woman in blue.
Contradiction: The men look like spies.