Anchor: well sometimes it's rewarding and and sometimes it's a struggle
Entailed: It's not always easy, but can be very satisfying. 
Contradiction: It is not ever challenging. 
Contradiction: a girl eats carrots
Contradiction: In the museum, there are eight vacant cubbies that may have once held statues.
Contradiction: A group of dogs laze about in the grass.
Contradiction: I see. He waited a moment, then gestured to Conrad.