Problem: Does "The electrolysis of water is a simple method of producing hydrogen." answer the question "What is an easy way to produce hydrogen?" OPTIONS:
- yes
- no

A: yes

Problem: Does "AA gunnery was a difficult business." answer the question "What was the problem with AA gunnery?" OPTIONS:
- yes
- no

A: no

Problem: Does "He concluded that the space shuttle reliability estimate by NASA management was fantastically unrealistic, and he was particularly angered that NASA used these figures to recruit Christa McAuliffe into the Teacher-in-Space program." answer the question "Who did NASA recruit by using flawed safety numbers?" OPTIONS:
- yes
- no

A:
yes