Anchor: A group of people demonstrating their robots.
Entailed: Some people are controlling robots.
Contradiction: Robots are controlling a group of people.
Contradiction: A bunch of boys pull weeds in a garden.
Contradiction: The NOx SIP call includes provisions concerning the tracking and transferring of allowances.
Contradiction: Biking is an alternative that is faster than the metro for longer rides across town. 
Contradiction: Actions were taken in preparation for the Revelation.