Anchor: There had been times when I hardly thought that Poirot appreciated me at my true worth. 
Entailed: Oftentimes I rarely thought about Poirot's consideration of my true value.
Contradiction: I never gave a thought to my worth since Poirot always admired it.
Contradiction: The marginal efficacy of prostaglandin will stop baby boomers from buying it.
Contradiction: There's a child with a bag.
Contradiction: You are keeping me alive.
Contradiction: A flea market houses many items.