Part 1. Definition
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.
Part 2. Example
Passage: The outbreak of the Seven Years' War in Europe in 1756 resulted in renewed conflict between French and British forces in India. The Third Carnatic War spread beyond southern India and into Bengal where British forces captured the French settlement of Chandernagore in 1757. However, the war was decided in the south, where the British successfully defended Madras, and Sir Eyre Coote decisively defeated the French, commanded by Comte de Lally at the Battle of Wandiwash in 1760. After Wandiwash, the French capital of Pondicherry fell to the British in 1761. The war concluded with the signing of the Treaty of Paris in 1763, which returned Chandernagore and Pondichéry to France, and allowed the French to have "factories" in India but forbade French traders from administering them. The French agreed to support British client governments, thus ending French ambitions of an Indian empire and making the British the dominant foreign power in India. 
Question: Which french settlement did the British capture first, Chandernagore or Pondicherry?
Answer: span
Explanation: The answer "Chandernagore" is a word from the passage. So, the answer type is "span".
Part 3. Exercise
Passage: Before the UNPROFOR fully deployed, the HV clashed with an armed force of the RSK in the village of Nos Kalik, located in a pink zone near Šibenik, and captured the village at 4:45 p.m. on 2 March 1992. The JNA formed a battlegroup to counterattack the next day. The JNA battlegroup, augmented by elements of the 9th Military Police Battalion, deployed at 5:50 a.m. and clashed with the HV force in Nos Kalik. However, the JNA counterattack failed. The HV captured 21 RSK troops in Nos Kalik, intent on exchanging the prisoners for Croats held under arrest in Knin. Following negotiations, the HV agreed to pull back on 11 April, but later declined to do so, claiming deteriorating security at the battlefield in general prevented the withdrawal. Several Serb-owned houses in Nos Kalik were torched after the HV captured the village. The HV clashed with units subordinated to the 180th Motorised Brigade of the JNA in a pink zone near Zadar on 17-22 May. While the JNA repelled attacks in most areas around Zadar and Stankovci, the HV managed to cut a JNA base at the Križ Hill away from the rest of the force on 17 May. The JNA outpost occupied high ground overlooking the surrounding area, including Zadar. It housed radar equipment and was used as an artillery observer post. The JNA attempted to relieve the besieged garrison in the next few days, however the attempts failed and the base surrendered to the HV on 22 May. The attack and capture of the Križ Hill, codenamed Operation Jaguar, was carried out by the 2nd Battalion of the 159th Infantry Brigade of the HV, supported by artillery of the 112th Infantry Brigade.
Question: How many days after the village of Nos Kalik was captured did HV agree to pull back after negotiations?
Answer:
number