instruction:
This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
question:
Passage: In 2010, the city population was spread out with 18.8% under the age of 18, 9.4% from 18 to 24, 33.1% from 25 to 44, 25.0% from 45 to 64, and 13.6% who were 65 years of age or older. The median age was 38.8 years. For every 100 females, there were 99.2 males. For every 100 females age 18 and over, there were 98.1 males. 
Question: How many percent of the population was under the age of 65? 
Answer type: Number 
answer:
86.4.


question:
Passage: On a rainy day in New England, both teams' defenses held firm early, with the teams trading punts until New England went on a drive that reached one play into the second quarter, when Stephen Gostkowski booted a 31-yard field goal. On the Jets' next play from scrimmage, Chad Pennington was intercepted by Artrell Hawkins. Two plays later, Tom Brady found Doug Gabriel open downfield for a long first down, but Victor Hobson forced a fumble and Kerry Rhodes recovered. The Jets followed with a time-consuming 16-play, 9:12 drive, capped off by a two-yard Kevan Barlow touchdown run for a 7-3 Jets lead. New England battled downfield, converting a 4th-and-1 from their own 44 with a run to fullback Heath Evans, and on the first play after the two-minute warning, Brady appeared to be intercepted by Drew Coleman, who ran the ball back 35 yards. But, the play was negated on a controversial roughing-the-passer call on Hobson, who dove at Brady as he was releasing the ball, but drove him into the ground, prompting the flag. The Patriots then converted on a 4th-and-3 from the Jets' 24, but settled for a 21-yard field goal from Gostkowski with four seconds left. Justin Miller ran back the opening kickoff of the second half 62 yards, and the drive ended with Pennington lining up in the shotgun on 4th-and-5 from the Patriots' 33, only to punt the ball to the New England 4. After a Patriots punt, Pennington led the Jets on another long drive, this one 15 plays and only 45 yards, but it ate 6:40 off the clock and resulted in Nugent's 34-yard field goal. Midway through the fourth quarter, Brady was intercepted by Erik Coleman, and Pennington tossed a 22-yard touchdown pass to Jerricho Cotchery, barely keeping his feet inbounds, although the play was never challenged. The Jets led 17-6 with 4:51 to go. However, operating out of a no-huddle offense, Brady led the Patriots 61 yards in 31 seconds, capped by a 15-yard touchdown pass to Reche Caldwell, and Brady found Caldwell again on the two-point conversion to narrow the lead to 17-14. But the next drive was critical, as the Jets forced New England to use all three timeouts, punting with 1:15 to go. New England took over at their own 11-yard line and moved the ball to the Jets' 46-yard line. On the final play of the game, Brady was sacked by Shaun Ellis. 
Question: How many field goals were made during the first half? 
Answer type: Number 
answer:
2.


question:
Passage: In July 1449 Esen Tayisi  of the Mongols launched a large-scale, three-pronged invasion of China with his puppet khagan Toqtaq-Buqa. He personally advanced on Datong  in August. The eunuch official Wang Zhen, who dominated the Ming court, encouraged the 22-year-old Zhengtong Emperor to lead his own armies into battle against Esen. The size of Esen's army is unknown but a best guess puts it at some 20,000 men. The Ming army of about 500,000 was hastily assembled; its command was made up of 20 experienced generals and a large entourage of high-ranking civil officials, with Wang Zhen acting as field marshal. On August 3 Esen's army crushed a badly supplied Chinese army at Yanghe, just inside the Great Wall. The same day the Emperor appointed his half-brother Zhu Qiyu as regent. The next day he left Beijing for Juyong Pass. The objective was a short, sharp march west to Datong via the Xuanfu garrison, a campaign into the steppe and then a return to Beijing by a southerly route through Yuzhou. Initially the march was mired by heavy rain. At Juyong Pass the civil officials and generals wanted to halt and send the emperor back to Beijing, but their opinions were overruled by Wang Zhen. On August 16, the army came upon the corpse-strewn battlefield of Yanghe. When it reached Datong on August 18, reports from garrison commanders persuaded Wang Zhen that a campaign into the steppe would be too dangerous. The "expedition" was declared to have reached a victorious conclusion and on August 20 the army set out back toward China proper. 
Question: When did Esen Tayisi invade China? 
Answer type: Date 
answer:

{'day': '', 'month': '', 'year': '1449'}.