question: OPTIONS:
- yes
- no
Theoretical analyses show that detours that increase flight distance by up to 20% will often be adaptive on aerodynamic grounds - a bird that loads itself with food to cross a long barrier flies less efficiently.
What kind of bird flies less efficiently?

answer: yes

[Q]: Sentence: During the week Gaddafi slept in a mosque, and at weekends walked 20 miles to visit his parents. Question: In addition to gaining an education, describe how Gaddafi managed to attend school 20 miles from his family. OPTIONS:
- yes
- no
++++++++++
[A]: yes

Q: Does "Not until the late nineteenth century did English scholars agree they were talking about "the Enlightenment."" provide a valid answer to "In what century did the term Enlightenment emerge in English?"?
OPTIONS:
- yes
- no
A: no

Problem: Does "In general, German bombers were likely to get through to their targets without too much difficulty." answer the question "What did they use to lure German bombers away from their targets?" OPTIONS:
- yes
- no

A: no

Does the sentence "In writing her biography of the Buddha, Karen Armstrong noted, "It is obviously difficult, therefore, to write a biography of the Buddha that meets modern criteria, because we have very little information that can be considered historically sound..." provide a valid answer to the question "What are some of the outlines of life?" OPTIONS:
- yes
- no

A: no

Does the sentence "However, the mandolin's modern popularity in country music can be directly traced to one man: Bill Monroe, the father of bluegrass music." provide a valid answer to the question "What family recorded an old-time music in 1924-1926?" OPTIONS:
- yes
- no

A:
no