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.
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Question: Passage: At the beginning of World War II the 10th Cavalry was relegated to caretaker duties at Fort Leavenworth, Kansas. In 1942 the regiment was moved to Camp Lockett, California, replacing the 11th Cavalry in its duties as the southern defense of the Western Defense Command, under LTG DeWitt. 153 NCOs of this regiment would later be assigned to the newly organized 28th Cavalry Regiment forming its cadre, and filling out the 4th Cavalry Brigade, which would remain in existence after the deactivation of the 2nd Cavalry Division, and its subsequent reactivation. In the summer of 1943, the 10th and 28th Cavalry Regiments fought wildfires in the Cleveland National Forest. In 1944, the entire 2nd Cavalry Division was shipped out to Oran, North Africa; where it disembarked and was deactivated on 9 March 1944. Although trained as combat soldiers, the soldiers of this regiment, and other regiments of the 2nd Cavalry Division were reorganized as combat support and combat service support units. Some would see combat as replacement soldiers of the 92nd Infantry Division.
Question: When was the 2nd Cavalry Division sent to North Africa?

Answer: date


Question: Passage: Prague employs almost a fifth of the entire Czech workforce, and its wages are significantly above average (~+25%). In December 2015, average salaries available in Prague reached 35,853 CZK, an annual increase of 3.4%, which was nevertheless lower than national increase of 3.9% both in nominal and real terms. (Inflation in Prague was 0.5% in December, compared with 0.1% nationally.) Since 1990, the citys economic structure has shifted from industrial to service-oriented. Industry is present in sectors such as pharmaceuticals, printing, food processing, manufacture of transport equipment, computer technology and electrical engineering. In the service sector, financial and commercial services, trade, restaurants, hospitality and public administration are the most significant. Service (economics) account for around 80 percent of employment. There are 800,000 employees in Prague, including 120,000 commuters. The number of (legally registered) foreign residents in Prague has been increasing in spite of the countrys economic downturn. As of March 2010, 148,035 foreign workers were reported to be living in the city making up about 18 percent of the workforce, up from 131,132 in 2008. Approximately one-fifth of all investment in the Czech Republic takes place in the city.
Question: Which year were there more foreign workers reported living in Prague, 2008 or 2010?

Answer: date


Question: Passage: Croatian air pollution levels reflect the drop in industrial production recorded in 1991 at the onset of the Croatian War of Independence—pre-war emission levels were only reached in 1997. The use of Hydrodesulfurization fuels has led to a 25% reduction of sulphur dioxide emissions between 1997 and 2004, and a further 7.2% drop by 2007. The rise in NOx emissions halted in 2007 and reversed in 2008. The use of unleaded petrol reduced emissions of lead into the atmosphere by 91.5% between 1997 and 2004. Air quality measurements indicate that the air in rural areas is essentially clean, and in urban centres it generally complies with legal requirements. The most significant sources of greenhouse gas (GHG) emissions in Croatia are energy production (72%), industry (13%) and agriculture (11%). The average annual increase of GHG emissions is 3%, remaining within the Kyoto Protocol limits. Between 1990 and 2007, the use of Ozone depletion was reduced by 92%; their use is expected to be abolished by 2015.
Question: When were sulphur dioxide emissions higher, 1997 or 2004?

Answer:
date