Anchor: For example, if an employee arrives 30 minutes late, but works 30 minutes past the planned departure time, this would be considered an immaterial variation and need not be recorded.
Entailed: If an employee arrives 30 minutes late, but works 30 minutes past the planned departure time, this would be considered an immaterial variation 
Contradiction: If an employee arrives 30 minutes late and doesn't work 30 minutes past the planned departure time, this would be considered an immaterial variation 
Contradiction: He was still aloof and seemed old and worn out.  
Contradiction: There is a boy on the pavement.
Contradiction: Michael Mazzariello has never ceased working as a prosecutor.
Contradiction: The men have something on their head.