In 1616 the Venetians besieged Farra and Gradisca, and the archduke attacked from Gorizia and Lucinico. With three large culverins, four guns and three small culverins, Farra repulsed the enemy artillery with heavy losses. The Venetians launched another futile assault before Giustiniani lifted the siege and retreated to Mariano. In September, Johan Ernst van Nassau-Siegen agreed to raise 3,000 men from the Dutch Republic for Venetian service. They arrived in May 1617, followed six months later by another 2,000 . Spanish support was blocked at sea by a flotilla of 12 Dutch and 10 English warships and on land by the war in Mantua. Although Archduke Ferdinand had only 4,000 soldiers to defend Gradisca, he received military, political and financial support from the Spanish as part of a larger agreement: Philip agreed to fight the Venetians and support Ferdinand as the next Holy Roman Emperor in return for the cession of Alsace, Finale Ligure and Piombino. This led to a negotiated settlement between Ferdinand and the Venetians in which many Uskok pirates were executed or exiled, and a permanent Austrian garrison was installed in Senj.

How many more Dutch warships were there than English?
A: 2

Protracted action at Verdun throughout 1916, combined with the bloodletting at the Somme, brought the exhausted French army to the brink of collapse. Futile attempts using frontal assault came at a high price for both the British and the French and led to the widespread French Army Mutinies, after the failure of the costly Nivelle Offensive of April-May 1917. The concurrent British Battle of Arras was more limited in scope, and more successful, although ultimately of little strategic value. A smaller part of the Arras offensive, the capture of Vimy Ridge by the Canadian Corps, became highly significant to that country: the idea that Canada's national identity was born out of the battle is an opinion widely held in military and general histories of Canada. The last large-scale offensive of this period was a British attack at Passchendaele . This offensive opened with great promise for the Allies, before bogging down in the October mud. Casualties, though disputed, were roughly equal, at some 200,000-400,000 per side. The years of trench warfare on the Western front achieved no major exchanges of territory and, as a result, are often thought of as static and unchanging. However, throughout this period, British, French, and German tactics constantly evolved to meet new battlefield challenges.

How many months did the Nivelle Offensive occur in?
A: 2

The history of mobile telephony in Brazil began on 30 December 1990, when the Cellular Mobile System began operating in the city of Rio de Janeiro, with a capacity for 10,000 terminals. At that time, according to Anatel (the national telecommunications agency), there were 667 devices in the country. The number of devices rose to 6,700 in the next year, to 30,000 in 1992. In November 2007 3G services were launched, and increased rapidly to almost 90% of the population in 2012 and the agreements signed as part of the auction specify a 3G coverage obligation of 100% of population by 2019. After the auction that took place in June 2012, LTE tests were undertaken in several cities, tourist locations and international conference venues. The first LTE-compatible devices became available in the local market and LTE services was commercially launched in 2013. Under the 4G licence terms, operators were required to have commercial networks in all twelve state capitals which are acting as host cities for the 2014 FIFA World Cup.

How many years after the auction was LTE service commercially launched?
A:
1