Problem: Does "Another difference is that whereas most popular styles lend themselves to the song form, classical music has been noted for its development of highly sophisticated forms of instrumental music such as the concerto, symphony, sonata, and mixed vocal and instrumental styles such as opera which, since they are written down, can attain a high level of complexity." answer the question "What popular styles practice improvisation and ad libitum ornamentation?" OPTIONS:
- yes
- no

A: no

Problem: Does "If the aircraft are VTOL-capable or helicopters, they do not need to decelerate and hence there is no such need." answer the question "What type of aircraft have no need to decelerate?" OPTIONS:
- yes
- no

A: yes

Problem: Does "However, excessive hunting and poachers have also contributed heavily to the endangerment, extirpation and extinction of many animals, such as the quagga, the great auk, Steller's sea cow, the thylacine, the bluebuck, the Arabian oryx, the Caspian and Javan tigers, the markhor, the Sumatran rhinoceros, the bison, the North American cougar, the Altai argali sheep, the Asian elephant and many more, primarily for commercial sale or sport." answer the question "How is excessive hunting related to the extinction of species?" OPTIONS:
- yes
- no

A:
yes