Q: Does "Their troops occupied Nanjing in December and carried out the systematic and brutal Nanking Massacre (the "Rape of Nanking")." provide a valid answer to "Who killed innocent civilians in the Nanking Massacre?"?
OPTIONS:
- yes
- no
A: no

Q: Does "Soldiers still wear berets who are currently in a unit in jump status, whether the wearer is parachute-qualified, or not (maroon beret), Members of the 75th Ranger Regiment and the Airborne and Ranger Training Brigade (tan beret), and Special Forces (rifle green beret) and may wear it with the Army Service Uniform for non-ceremonial functions." provide a valid answer to "Who was the Army Chief of Staff at this time?"?
OPTIONS:
- yes
- no
A: no

Q: Does "In the Sahel region, rain is less than 500 millimetres (20 in) per year and the Sahara Desert is encroaching." provide a valid answer to "Which desert is encroaching into northeastern Nigeria?"?
OPTIONS:
- yes
- no
A: yes

Q: Does "Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs, and other distinguishing features." provide a valid answer to "What causes glaciers to deform and flow?"?
OPTIONS:
- yes
- no
A:
yes