Problem: Please answer a question about the following article about United States Air Force:
This is the passive, active, and dynamic employment of capabilities to respond to imminent or on-going actions against Air Force or Air Force-protected networks, the Air Force's portion of the Global Information Grid, or expeditionary communications assigned to the Air Force. Cyberspace defense incorporates CNE, computer network defense (CND), and CNA techniques and may be a contributor to influence operations. It is highly dependent upon ISR, fused all-source intelligence, automated indications and warning, sophisticated attribution/characterization, situational awareness, assessment, and responsive C2.
What is the definition of CND?
A: computer network defense
Problem: Please answer a question about the following article about Norfolk Island:
The island is subject to separate immigration controls from the remainder of Australia. Until recently immigration to Norfolk Island even by other Australian citizens was heavily restricted. In 2012, immigration controls were relaxed with the introduction of an Unrestricted Entry Permit for all Australian and New Zealand citizens upon arrival and the option to apply for residency; the only criteria are to pass a police check and be able to pay into the local health scheme. From 1 July 2016, the Australian migration system will replace the immigration arrangements currently maintained by the Norfolk Island Government.
What must Australian and New Zealand citizens do in order to apply for residency in Norfolk Island? 
A: pass a police check and be able to pay into the local health scheme
Problem: Please answer a question about the following article about Anti-aircraft warfare:
AAA battalions were also used to help suppress ground targets. Their larger 90 mm M3 gun would prove, as did the eighty-eight, to make an excellent anti-tank gun as well, and was widely used late in the war in this role. Also available to the Americans at the start of the war was the 120 mm M1 gun stratosphere gun, which was the most powerful AA gun with an impressive 60,000 ft (18 km) altitude capability. No 120 M1 was ever fired at an enemy aircraft. The 90 mm and 120 mm guns would continue to be used into the 1950s.
What did the Americans use at the beginning of the war?
A: 120 mm M1 gun stratosphere gun
Problem: Please answer a question about the following article about Poultry:
Clay models of ducks found in China dating back to 4000 BC may indicate the domestication of ducks took place there during the Yangshao culture. Even if this is not the case, domestication of the duck took place in the Far East at least 1500 years earlier than in the West. Lucius Columella, writing in the first century BC, advised those who sought to rear ducks to collect wildfowl eggs and put them under a broody hen, because when raised in this way, the ducks "lay aside their wild nature and without hesitation breed when shut up in the bird pen". Despite this, ducks did not appear in agricultural texts in Western Europe until about 810 AD, when they began to be mentioned alongside geese, chickens, and peafowl as being used for rental payments made by tenants to landowners.
How did Lucius Columella recommend that one go abbout the business of domesticating ducks.?
A:
collect wildfowl eggs and put them under a broody hen,