Anchor: a man is trying to grab his ladder standing on scaffolding.
Entailed: A man is trying to grab his ladder while standing on scaffolding
Contradiction: A man falls off scaffolding trying to grab his ladder
Contradiction: The GAO cannot undertake work on its own initiative. 
Contradiction: More than aggregate data has to be used in order to determine the financial situation of each household.
Contradiction: All unemployment tax is collected together 
Contradiction: You must be joking when you sew the seem on the inside edge.