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.

Passage: Since the end of World War II, in part due to industrial size and the onset of the Cold War, the United States has often been a proponent of reduced tariff-barriers and free trade. The U.S. helped establish the General Agreement on Tariffs and Trade  and later the World Trade Organization ; although it had rejected an earlier version in the 1950s . Since the 1970s, U.S. governments have negotiated managed-trade agreements, such as the North American Free Trade Agreement  in the 1990s, the Dominican Republic-Central America Free Trade Agreement  in 2006, and a number of bilateral agreements . In Europe, six countries formed the European Coal and Steel Community  in 1951 which became the European Economic Community  in 1958. Two core objectives of the EEC were the development of a common market, subsequently renamed the single market, and establishing a customs union between its member states. After expanding its membership, the EEC became the European Union  in 1993. The European Union, now the world's largest single market, has concluded free trade agreements with many countries around the world.
Question: When did the countries that later formed the European Union first join?
date

Passage:  Hoping to snap their three-game losing streak, and coming off their bye week, the Broncos traveled to Sun Life Stadium to face the Miami Dolphins, where the Broncos had never won in their franchise history. After a scoreless first quarter, the Dolphins grabbed the lead in the second quarter, with field goals of 38 and 36 yards by kicker Dan Carpenter. After a scoreless third quarter, the Dolphins extended their lead in the fourth quarter, with quarterback Matt Moore throwing a 16-yard touchdown pass to tight end Anthony Fasano (with a failed two-point conversion attempt), followed by a 43-yard field goal by Carpenter, giving Miami a 15-0 lead. However, after each team traded punts, the Broncos staged a rally with just over five minutes remaining, with quarterback Tim Tebow throwing a 5-yard touchdown pass to wide receiver Demaryius Thomas to pull to within 15-7 with 2:44 remaining. After the Broncos recovered an onside kick, they subsequently marched down the field, with Tebow connecting on a 3-yard touchdown pass to tight end Daniel Fells, followed by Tebow scrambling for the two-point conversion to send the game into overtime. On the Dolphins' second possession in overtime, Broncos' linebacker D. J. Williams forced a fumble off Moore, giving the Broncos possession at the Dolphins' 36-yard line. Four plays later, kicker Matt Prater, who had missed two field goals in the first half, nailed the game-winning 52-yard field goal. With the win, the Broncos earned their 400th win in franchise history, their first-ever win at Miami in eight tries, and became the first team in NFL history since the AFL-NFL merger to win a game after trailing by 15 or more points with less than three minutes remaining in the fourth quarter.
Question: How many points were scored in the first quarter?
number

Passage: Operating out of New London, Connecticut from 1923 to 1925, S-26 visited Saint Thomas, United States Virgin Islands and Trinidad from January to April 1924, and Hawaii from 27 April to 30 May 1925. Cruising from California ports, mainly Mare Island, California, San Diego, California, and San Pedro, California, S-26 visited Hawaii in the summers of 1927-1930. She also served in the Panama Canal area from March to May 1927, and in February 1929. Departing San Diego on 1 December 1930, she arrived at Pearl Harbor on 12 December. From then into 1938, S-26 served at Pearl Harbor. Sailing from there on 15 October 1938, she returned to New London on 25 March 1939. Entering a period of partial duty on 15 April that year, she resumed full duty on 1 July 1940.
Question: How many years did S-26 serve at Pearl Harbor?

number