Anchor: Like many other inventors before him, professor Slawomir Suwak designed only the things he needed himself.
Entailed: Professor Slawomir Suwak is an inventor.
Contradiction: Professor Suwak is not an inventor, but rather a mathematician. 
Contradiction: Is wearing pink proper for attendants at a funeral?
Contradiction: I decided to come home so I did.
Contradiction: The pugs are green.
Contradiction: Mineral rights are excluded from rents on government property.