Q: Does "Earthworms are Oligochaetes that support terrestrial food chains both as prey and in some regions are important in aeration and enriching of soil." provide a valid answer to "Why are some leeches endangered?"?
OPTIONS:
- yes
- no
A: no

Q: Does "Approval from mainland Chinese authorities was sought, and the chartered flight departed Taipei at 17:00 CST, May 15 and arrived in Chengdu by 20:30 CST." provide a valid answer to "What date did the cargo flight leave?"?
OPTIONS:
- yes
- no
A: yes

Q: Does "For this reason it has long been used to line parts of ships to protect against barnacles and mussels." provide a valid answer to "What word means that bacteria won't grow on a substrate?"?
OPTIONS:
- yes
- no
A: no

Q: Does "During the 1980s, some hard rock bands moved away from their hard rock roots and more towards pop rock, while others began to return to a hard rock sound." provide a valid answer to "What were some hard rock bands of the 1970s?"?
OPTIONS:
- yes
- no
A:
no