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.

[EX Q]: Passage: The start of the war in Europe is generally held to be 1 September 1939, beginning with the German invasion of Poland; the United Kingdom and France declared war on Germany two days later. The dates for the beginning of war in the Pacific include the start of the Second Sino-Japanese War on 7 July 1937, or even the Japanese invasion of Manchuria on 19 September 1931. Others follow the British historian A. J. P. Taylor, who held that the Sino-Japanese War and war in Europe and its colonies occurred simultaneously, and the two wars merged in 1941. This article uses the conventional dating. Other starting dates sometimes used for World War II include the Italian invasion of Abyssinia on 3 October 1935. The British historian Antony Beevor views the beginning of World War II as the Battles of Khalkhin Gol fought between Japan and the forces of Mongolia and the Soviet Union from May to September 1939. The exact date of the war's end is also not universally agreed upon. It was generally accepted at the time that the war ended with the armistice of 14 August 1945 , rather than the formal surrender of Japan, which was on 2 September 1945 that officially ended the war in Asia. A peace treaty with Japan was signed in 1951. A treaty regarding Germany's future allowed the reunification of East and West Germany to take place in 1990 and resolved most post-World War II issues. A formal peace treaty between Japan and the USSR had never been signed. 
Question: How many months did the Battles of Khalkhin Gol last? 
Answer type: Number 
[EX A]: 4.

[EX Q]: Passage: After a tough season-opening loss, the Steelers traveled to Cincinnati to take on the Bengals.  The Steelers scored first when Shaun Suisham scored a field goal from 44 yards out to make the score 3-0.  The Bengals took the lead as Giovani Bernard ran for a 7-yard touchdown making the score 7-3.  The Bengals scored again in the 2nd quarter as Mike Nugent nailed a 41-yard field goal to make the score 10-3 followed up by Ben Roethlisberger finding Derek Moye on a 1-yard pass to tie the game at 10-10 halftime.  The Bengals retook the lead in the 3rd quarter as Andy Dalton found Bernard on a 27-yard pass retaking the lead 17-10 and then it was  followed up by Nugent's 25-yard field goal in the 4th quarter for a final score of 20-10. With their 2nd straight loss to the Bengals, the Steelers started a season 0-2 for the first time since 2002. 
Question: How many points were scored in the first half? 
Answer type: Number 
[EX A]: 20.

[EX Q]: Passage: Coming off their road win over the Redskins, the Bills went home, donned their throwbacks again, and played a Week 14 AFC East rematch with the still-winless Miami Dolphins.  In the first quarter, Buffalo drew first blood with rookie QB Trent Edwards completing a 13-yard TD pass and a 28-yard TD pass to TE Robert Royal.  Afterwards, the Bills continued their early pounding as Safety George Wilson returned a fumble 20 yards for a touchdown.  The Dolphins would get on the board with RB Samkon Gado getting a 12-yard TD run, yet Buffalo would answer right back with kicker Rian Lindell getting a 51-yard field goal, setting a new Buffalo Bills record for 18 consecutive field goals (beating Steve Christie's old record of 17; Lindell would later miss wide left from 46).  In the second quarter, the Bills continued their domination with Edwards completing a 9-yard TD pass to WR Lee Evans for the only score of the period. In the third quarter, Miami tried to rally as Gado got a 20-yard TD run, while kicker Jay Feely nailed a 41-yard field goal.  In the fourth quarter, Buffalo would put the game away as Edwards hooked up with Evans again on a 70-yard TD pass to secure a season-sweep. 
Question: How many yards was the longest field goal? 
Answer type: Number 
[EX A]:
51.