Anchor: On the outlying islands, Cheung Chau and Cheung Sha are on Lantau, and Hung Shing Ye and Lo So Shing on Lamma; inquire about water pollution levels.
Entailed: There is an inquiry into the pollution of water on Lantau and Lamma island.
Contradiction: Several people traveled to Lantau and Lamma to inquire about agricultural yields.
Contradiction: The person stayed quiet. 
Contradiction: The people in the boat have some fishing equipment.
Contradiction: Nobody is walking.
Contradiction: Questions are raised by allowing contracts with government postal services.