Anchor: So long as China continues to develop, Hong Kong will get a substantial chunk of that growth.
Entailed: Hong Kong stands to inherit a large amount of China's growth as long as China continues to grow.
Contradiction: Hong Kong does not receive any benefit of China's success. 
Contradiction: two friends are swimming in a swimming pool
Contradiction: Two people are playing chess.
Contradiction: Two people are playing violins
Contradiction: There is man near a tree.