Anchor: but uh i i have one mainly i bought it because i'm in uh taking a lot of courses along with work and  it's very useful in that respect but i hope to do something more with it
Entailed: I purchased one, largely due to the fact that I am doing numerous courses, for which it is very helpful. 
Contradiction: I didn't buy it in the end because I knew it wouldn't prove to be very useful. 
Contradiction: The police are sitting in their police cars.
Contradiction: A group of men wearing green and black posing for a picture in the street
Contradiction: The principle of similarity is not central to the understanding of true science.
Contradiction: My in-laws have many connections with the airline companies.