question: Metallica was released on August 12, 1991, and was the bands first album to debut at number one on the Billboard 200, selling 598,000 copies in its first week. It was certified platinum in two weeks and spent four consecutive weeks atop the Billboard 200. Logging over 488 weeks on the Billboard 200, it is the third longest charting album in the Nielsen SoundScan era, behind Pink Floyds Dark Side of the Moon and Carole Kings Tapestry (Carole King album). In 2009, it surpassed Shania Twains Come On Over as the best-selling album of the SoundScan era. It became the first album in the SoundScan era to pass 16 million in sales, and with 16.4 million copies sold by 2016, Metallica is the best-selling album in the United States since Nielsen SoundScan tracking began in 1991. Of that sum, 5.8 million were purchased on compact cassette. The album never sold less than 1,000 copies in a week, and moved a weekly average of 5,000 copies in 2016. Metallica was certified RIAA certification by the Recording Industry Association of America (RIAA) in 2012 for shipping sixteen million copies in the US. Metallica sold 31 million copies worldwide on physical media. All five of Metallicas singles, "Enter Sandman", "The Unforgiven", "Nothing Else Matters", "Wherever I May Roam" and "Sad but True" reached the Billboard Hot 100.
Answer this question: How many years after Nielsen SoundScan tracking did Metallica become the best selling album in the US?
answer: 25

question: Before Hunyadi could assemble his forces, the army of Mehmed II arrived at Belgrade. The siege began on July 4, 1456. Szilagyi could rely on a force of only 5,000-7,000 men in the castle. Mehmed set up his siege on the neck of the headland and started heavily bombarding the city's walls on June 29. He arrayed his men in three sections: The Rumelian corps had the majority of his 300 cannons, while his fleet of 200 river war vessels had the rest of them. The Rumelians were arrayed on the right wing and the Anatolian corps were arrayed on the left. In the middle were the personal guards of the Sultan, the Janissaries, and his command post. The Anatolian corps and the Janissaries were both heavy infantry troops. Mehmed posted his river vessels mainly to the northwest of the city to patrol the marshes and ensure that the fortress was not reinforced. They also kept an eye on the Sava river to the southwest to avoid the infantry from being outflanked by Hunyadi's army. The zone from the Danube eastwards was guarded by the Sipahi, the Sultan's feudal heavy cavalry corps, to avoid being outflanked on the right.
Answer this question: Which event happened first, the siege, or Hunyadi assembling his forces?
answer: The siege

question: Hoping to snap a six-game losing streak, the Chargers flew to EverBank Field for a Week 13 Monday night duel with the Jacksonville Jaguars. San Diego delivered the game's opening punch with a 13-yard touchdown run from running back Mike Tolbert, followed by a 29-yard field goal from kicker Nick Novak. The Jaguars would answer in the second quarter with quarterback Blaine Gabbert completing a 9-yard touchdown pass to running back Maurice Jones-Drew and a 5-yard touchdown pass to wide receiver Cecil Shorts, yet the Chargers replied with quarterback Philip Rivers connecting with rookie wide receiver Vincent Brown on a 22-yard touchdown pass and a 35-yard touchdown pass to wide receiver Vincent Jackson. San Diego added onto its lead in the third quarter with Rivers hooking up with wide receiver Malcom Floyd on a 52-yard touchdown pass. Afterwards, the 'Bolts would pull away in the fourth quarter with a 31-yard touchdown run from running back Ryan Matthews.
Answer this question: How long were each of the touchdowns in the second half?
answer:
52-yard