This task involves annotating the answer type to a given question that involve some kind of complex reasoning (including numerical reasoning). Note that the questions require looking at more than one part of the passage to answer. There are 3 possible answer types (i) spans, (ii) numbers and (iii) dates. If the answer can be found in the passage, label it as "span". If the answer is a number, label as "number". Similarly, label "date" if you think the answer to the given question is a date.

Example Input: Passage: The Confederation-controlled Ava was next. Bayinnaung made extensive preparations, assembling a large invasion force . In December 1554, the Toungoo land and naval forces invaded. Within a month, the invasion forces held complete command of the river and the country. On 22 January 1555, the southern forces took the city. Bayinnaung then planned to follow up to the Confederation's home states to prevent future Shan raids into Upper Burma. With the entire Irrawaddy valley under his control, he was able to raise a large army of 24,000 men, 1200 horses and 60 elephants, and invaded the Shan states in January 1557. The massive show of force worked. Shan states one after another submitted with minimal resistance. By March 1557, Bayinnaung in one stroke controlled all cis-Salween  Shan states from the Patkai range at the Assamese border in the northwest to Mohnyin , Mogaung  in present-day Kachin State to Momeik  Thibaw , and Mone  in the east.
Question: On what date did the invasion of Ava end?
Example Output: date

Example Input: Passage: A rejuvenated Nick Foles got his starting job back after being benched in favor of Case Keenum, who suffered a concussion after last week's loss in Baltimore. However, Foles' return was marred as he struggled to find open receivers and was picked off three times by the Bengals ranked defense. He also took hits throughout the game and he was sacked a few times. The only Rams score was a 5-yard run by Tavon Austin on a reverse play in the second quarter. St. Louis' defense was not a factor all game as they struggled to stop the high-powered Bengals offense led by quarterback Andy Dalton, and receivers A. J. Green, and Tyler Eifert, (the latter left the game with a stinger) who is leading the league in touchdown catches. With the loss, the Rams extended their losing streak to 4 games, making their record 4-7.
Question: Who did Keenum suffer his concussion playing against?
Example Output: span

Example Input: Passage: The Eagles' eighth game was an Interconference duel with the Colts at home. In the first quarter the Eagles Took the lead as QB Michael Vick completed a 9-yard TD pass to WR DeSean Jackson. This was followed by kicker David Akers' 22- and 21-yard field goals. The Colts replied with QB Peyton Manning completing a 3-yard TD pass to TE Jacob Tamme. The Eagles extended their lead after Akers nailed a 31-yard field goal. They eventually trailed by 1 point after RB Javarris James got a 6-yard TD run, followed by kicker Adam Vinatieri making a 37-yard field goal. The Eagles got the lead back in the 3rd quarter after Akers got a 44-yard field goal, followed by Vick scrambling a yard to the endzone for a touchdown. The Colts narrowed the lead when James got a 1-yard TD run, but in the final minute Manning lofted a deep pass that was intercepted by Asante Samuel. With the close win, the Eagles improved to 5-3.  It was also the first win over the Colts for the Eagles since the 1993 season.
Question: How many yards longer was the longest touchdown pass than the shortest?
Example Output:
number