Anchor: Noting the fossil's eel-like tail and other aquatic attributes, Lee and Caldwell suggest that these proto-snakes retreated into the water, shed their legs, then slithered back out.
Entailed: Lee and Caldwell seem to think that the proto-snakes shed their legs.
Contradiction: The fossil lacked any aquatic attributes aside from its eel-like tail.
Contradiction: Let's hope we don't get the same a you. 
Contradiction: You are welcomed to party until you wish.
Contradiction: Workers are in a restaurant eating sandwiches.
Contradiction: Lessons aren't a requirement.