Problem: The idea that Earth is a magnet is far from new. It was first proposed in 1600 by a British physician named William Gilbert. Knowing it acts like a magnet is one thing. Knowing why it acts like a magnet is more difficult. In fact, finding out why is a fairly recent discovery. To find out why required new technology. It was the seismograph that made it possible to learn why the Earth acted like a magnet. Seismograph are used to study earthquakes. By studying earthquake waves they were able to learn about Earths interior. They discovered that Earth has an inner and outer core. The outer core consists of liquid metals, mainly iron and nickel. Scientists think that Earths magnetic field is generated here. It is caused by the motion of this liquid metal. The liquid metal moves as Earth spins on its axis. 

Question: "Does the earth have magnetic properties? If so when was this idea proposed?"

Answer: "Yes,1890"
Answer: no

Problem: (CNN) -- Guatemala's government has declared a state of siege and sent hundreds of troops to a northern province where officials say a Mexican drug gang is overtaking towns and threatening residents. President Alvaro Colom announced the 30-day emergency rule in Alta Verapaz on Sunday. The rule allows the military to order anyone suspected of conspiring against the government to be arrested and imprisoned without a warrant, the state-run AGN news agency said. "Starting today, combined forces will retake the streets of Alta Verapaz," a government statement released Sunday morning said. Government data shows cells of the drug gang known as Los Zetas are in the area to protect drug trafficking paths between Honduras and Mexico, "intimidating the population with their heavy weapons and threatening farmers to give up their land for criminal activities," AGN reported. The state of siege also allows the government to place greater restrictions on public gatherings, travel visas and gun licenses, among other things, according to AGN. "The population should be calm. What we are doing is not intended to persecute honest, working people," Interior Minister Carlos Menocal told reporters. Menocal said operations in the coming days would aim to boost regional security, regain control of territory, identify criminal gangs and capture their members. In an interview with CNN en Espanol last month, Menocal said his country needed more help from the United States to combat cartels, which were increasingly carving out new drug transport paths. "In the end, the large majority of drugs travel through Central America, and the assignment of resources or the financial support of the United States government is not the same as Colombia and Mexico receive," he said. Menocal said clashes between authorities and Los Zetas had notably increased. 

Question: "Alta Verapaz is in which country?"

Answer: "Mexico"
Answer: no

Problem: Juzo Murasaki arrives at a work construction area to take on his new job as a construction worker .  To his quiet dismay , his supervising boss turns out to be Toru Akai , who with his gang had made Juzo's middle school life a living hell .  Akai , however , does n't recognize Juzo .  Juzo's more disconcerted when he discovers that Akai lives with his wife , Nozomi Akai and their toddler son above Juzo's new apartment .  As Juzo emotionally struggles to handle these unexpected developments , a mysterious and seemingly malicious hooded figure appears .  It calls itself Number 13 .  As Juzo attempts to control increasing number of flashbacks and a spiral fall into psychological darkness , Akai constantly picks on Juzo and other work colleagues including Seki Hajime , a former middle school student who becomes Juzo's casual friend in spite of Juzo's anti-social tendencies , at work .  Meanwhile Akai's wife , Nozomi , attempts to make friends with Juzo and entrusting the care of her toddler son to Juzo .  She proudly shows Juzo her husband's school photos .  In one class photo , Juzo's space is marked with an X to show he was absent .  Juzo suffers a severe flashback to explain his absence that day : in their school's science room , Akai and his friends have thrown acid at Juzo's face .  Seki becomes suspicious about Juzo's increasingly odd behavior and goes to inform Arai at the work site , but Arai dismisses him without giving him a chance to speak .  During this incident , Seki does n't realize he's being watched by Number 13 , but as soon as he does , Number 13 kills him . 

Question: "Who killed Seki and why?"

Answer: "Nozomi for being friends with Juzo"
Answer:
no