Anchor: This leaves them seven million super-dense worlds for exploration and colonization."  
Entailed: There are seven million other places to explore.
Contradiction: There are 2 different places they could explore.
Contradiction: The man in the hat does not wear glasses.
Contradiction: person surfs
Contradiction: A company's management is permanent and they only leave when they retire.
Contradiction: The young child is standing on a tricycle.