Anchor: A skateboarder who is wearing a red shirt and knee pads is skating on a steep ramp.
Entailed: a person riding a skateboard on a ramp
Contradiction: an old man falls off a skateboard
Contradiction: A girl is going down a giant waterslide at a theme park.
Contradiction: It is a sunny day with no rain
Contradiction: The two children happily eat ice cream under the hot sun.
Contradiction: If we want to become part of the circus, we have to be responsible for the animals.