Question:
Choose your answer: Is "One of the major tributaries of the Yangtze within the province is the Min River of central Sichuan, which joins the Yangtze at Yibin." a good answer to the question "Which tributary of the Yangtze flows through central Sichuan?"
Answer:
yes

Question:
Choose your answer: Is "The AFL is divided into two conferences the American Conference and National Conference." a good answer to the question "What are these conferences in the AFL named?"
Answer:
yes

Question:
Choose your answer: Is "Prompted by legislation in various countries mandating increased bulb efficiency, new "hybrid" incandescent bulbs have been introduced by Philips." a good answer to the question "How much more efficient are Halogena Energy Saver bulbs compared to incandescents?"
Answer:
no