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.

Ex Input:
Passage: Col. Edwin Sumner conducted a campaign against the Navajo in 1851. He delegated Maj. Electus Backus to build Fort Defiance in the middle of Diné bikéyah . Col Sumner entered Canyon de Chelly but Navajo harassment attacks caused him to withdraw. In 1855 a treaty was signed at Laguna Negra by Manuelito and Zarcillos Largos for the Navajo and Henry L. Dodge , Governor Merriweather, and General John Garland. Two years later a severe drought hit the Navajo and decimated their livestock and agricultural resources, causing a famine in the winter of 1857-1858. A time of social disruption ensued. Surrounding tribes gradually increased their attacks on the weakened Navajo. The Navajo demanded in 1858 that Fort Defiance stop grazing their livestock on prime Navajo land. Soldiers shot 48 cattle and 8 horses belonging to Manuelito. Navajo warriors killed a servant of the commanding officer in retaliation for the killing of their people's livestock without compensation. The United States military demanded the murderer be brought to them, or they would begin a war. The Miles Campaign was sent against them, leaving Fort Defiance on September 9.
Question: What year did a severe drought hit the Navajo?

Ex Output:
date


Ex Input:
Passage:  The Vikes fell to 4-3 with a loss at home on Monday Night Football to the New England Patriots. The Pats, who came out passing instead of bothering to even try challenging the Vikings rush defense, got out to an early lead on the opening drive as QB Tom Brady hit WR Reche Caldwell for a 6-yard touchdown pass. Kicker Stephen Gostkowski connected on a 23-yard field goal early in the second quarter. Brady threw his second of what would turn out to be four touchdown passes, this time to TE Benjamin Watson just before halftime to give the Pats a 17-0 lead. The Vikes finally got on the board as RB Mewelde Moore returned a punt 71 yards for a touchdown early in the third quarter. That would be all the Vikes could muster as Brady threw his final two touchdowns to wide receivers Troy Brown and Chad Jackson respectively to close out the scoring.
Question: Which team had the lead at the start of the second quarter?

Ex Output:
span


Ex Input:
Passage: The Ravens began their 2008 campaign at home against their toughest AFC North foe, the Cincinnati Bengals.  In the first quarter, Baltimore opened the scoring with WR Mark Clayton scoring on a 42-yard TD run from a double-reverse play.  In the second quarter, the Ravens increased their advantage with Matt Stover kicking a 21-yard field goal.  The Bengals responded with Shayne Graham kicking a 43-yard field goal to end the first half.  In the third quarter, Baltimore responded with rookie quarterback Joe Flacco scoring on a 38-yard TD run.  In the fourth quarter, Cincinnati tried to rally as CB Johnathan Joseph returned a fumble 65 yards for a touchdown.  Ultimately, the Ravens defense stopped a potential Bengals scoring drive on fourth down late in the fourth quarter and won the game. Joe Flacco in his rookie debut, completed 15 of 29 passes for 129 yards (along with a touchdown run).
Question: Which team kicked the first field goal?

Ex Output:

span