Anchor: It's also important to take the rarefied atmosphere into account when exercising.
Entailed: While doing exercise, you must keep in mind the amount of oxygen in the air.
Contradiction: It isn't important to think about the atmosphere during exercise.
Contradiction: The oxygen concentration has no effect on exercising.
Contradiction: It's very cheap to buy the supplies needed for greenware and you can get it all for at most two dollars.
Contradiction: The houses have gray and white stripes.
Contradiction: I have never read a book.