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: The Forty Years' War  was a military conflict fought between the Burmese-speaking Kingdom of Ava and the Mon-speaking Kingdom of Hanthawaddy Pegu. The war was fought during two separate periods: 1385 to 1391, and 1401 to 1424, interrupted by two truces of 1391-1401 and 1403-1408. It was fought primarily in today's Lower Burma and also in Upper Burma, Shan State and Rakhine State. It ended in a stalemate, preserving the independence of Hanthawaddy, and effectively ending Ava's efforts to rebuild the erstwhile Pagan Empire. 
Question: How many countries kept their independence? 
Answer type: Number 
answer:
1.


question:
Passage: Following their bye week, the Raiders traveled to Mexico City for a home game against the AFC-leading Patriots. With a loss by the Chiefs earlier in the day, the Raiders looked to move within one game of the division lead. The Patriots quickly shut out any hope of a win, scoring touchdowns on two of their first three possessions to take a 14-0 lead. With under two minutes remaining in the half, the Raiders drove inside the New England 20 yard line in an attempt to cut the lead in half. Derek Carr hit Seth Roberts at the New England three, but Roberts did not properly secure the ball and fumbled, turning the ball over to Tom Brady and the Patriots with 33 seconds remaining in the half. New England quickly moved to the Raider 45 and Stephen Gostkowski connected on a 62-yard field goal as the half ended to move the lead to 17-0. In the second half, things got even worse for the Raiders as the Patriots scored on their third play, a Brady 64-yard pass to Brandin Cooks to extend the lead to 24 and end any hope of a Raider win. Two more Gostkowski field goals in the third quarter moved the lead to 30-0 entering the fourth quarter. Carr did hit Amari Cooper from nine yards out and converted the two-point play early in the fourth quarter. Another Gostkowski field goal ended the scoring as the Patriots dismantled the Raiders 33-8. The loss moved the Raiders to 4-6 on the season as they remained two games behind the Chiefs in the AFC West. The Raiders were out-gained 420-344 on the day as the Raiders' defense continued its season-long struggle. 
Question: How many points were the Raiders trailing by at halftime? 
Answer type: Number 
answer:
17.


question:
Passage: At the University of Arizona, where records have been kept since 1894, the record maximum temperature was  on June 19, 1960, and July 28, 1995, and the record minimum temperature was  on January 7, 1913. There are an average of 150.1 days annually with highs of  or higher and an average of 26.4 days with lows reaching or below the freezing mark. Average annual precipitation is . There is an average of 49 days with measurable precipitation. The wettest year was 1905 with  and the driest year was 1924 with . The most precipitation in one month was  in July 1984. The most precipitation in 24 hours was  on October 1, 1983. Annual snowfall averages . The most snow in one year was  in 1987. The most snow in one month was  in January 1898 and March 1922. 
Question: How many years after the wettest year did the driest year happen? 
Answer type: Number 
answer:

19.