Anchor: He seemed to see something over here", I indicated the mantelpiece, "that absolutely paralysed him."
Entailed: He saw something that paralysed him. 
Contradiction: He saw nothing. 
Contradiction: the band has four members.
Contradiction: Mrs. Inglethorp was along that night, shut off from any form of help.
Contradiction: Lots of people are dancing.
Contradiction: A person is taking pictures.