Q: Does "Season four premiered on January 18, 2005; this was the first season of the series to be aired in high definition, although the finale of season three was also aired in high definition." provide a valid answer to "When did season four premiere?"?
OPTIONS:
- yes
- no
A: yes

Q: Does "Anthropologists maintain that hunter/gatherers don't have permanent leaders; instead, the person taking the initiative at any one time depends on the task being performed." provide a valid answer to "Initiative within the group depends upon what factor?"?
OPTIONS:
- yes
- no
A: yes

Q: Does "A further environmental advantage is that algae grow in such ponds and consume carbon dioxide in photosynthesis, although algae may produce toxic chemicals that make the water unusable." provide a valid answer to "What is a reason why the water from a water stabilisation pond may be unusable?"?
OPTIONS:
- yes
- no
A: yes

Q: Does "This was hip-hop pioneer KRS-One's inspiration for his thought provoking group BDP, or Boogie Down Productions, which included DJ Scott La Rock." provide a valid answer to "What types of music did hip hop emerge from?"?
OPTIONS:
- yes
- no
A:
no