Anchor: Because we are ignorant of other biological systems, we have no context for understanding Earth life, for knowing to what extent the life we see around us is, on the cosmic scale, relatively ordinary or totally freakish.
Entailed: The universe is too vast for the average human to understand. 
Contradiction: The majority of humans understand the complexities of the universe.
Contradiction: The boxer lands a left hook.
Contradiction: There are girls in clothes.
Contradiction: Two boys watch are watching their own duckpin bowling balls roll down their respective lanes, towards the duckpins at the end of the alley.
Contradiction: There is a good cause exception to the 60 day delay provision.