Anchor: For a similar reason the use of the world as a base for interstellar travel, except for trade in certain items, is uneconomical.
Entailed: Our world is not a good economical base.
Contradiction: We should use our country as the base.
Contradiction: The child in a bright red shirt was holding a small ladybug.
Contradiction: three men looking at a football
Contradiction: People sitting in a crowded stadium.
Contradiction: While shows last up to four hours, you can buy cheaper balcony tickets for just part of the program.