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: The disintegration of Russia offered Finns an historic opportunity to gain national independence. After the October Revolution, the conservatives were eager for secession from Russia in order to control the left and minimise the influence of the Bolsheviks. The socialists were skeptical about sovereignty under conservative rule, but they feared a loss of support among nationalistic workers, particularly after having promised increased national liberty through the "Law of Supreme Power". Eventually, both political factions supported an independent Finland, despite strong disagreement over the composition of the nation's leadership. Nationalism had become a "civic religion" in Finland by the end of nineteenth century, but the goal during the general strike of 1905 was a return to the autonomy of 1809-1898, not full independence. In comparison to the unitary Swedish regime, the domestic power of Finns had increased under the less uniform Russian rule. Economically, the Grand Duchy of Finland benefited from having an independent domestic state budget, a central bank with national currency, the markka , and customs organisation and the industrial progress of 1860-1916. The economy was dependent on the huge Russian market and separation would disrupt the profitable Finnish financial zone. The economic collapse of Russia and the power struggle of the Finnish state in 1917 were among the key factors that brought sovereignty to the fore in Finland.
Question: What were the socialists skeptical about?
span

Passage: The fourth Chinese domination was a period of the history of Vietnam, from 1407 to 1427 during which the country was invaded and ruled by the Chinese Ming dynasty. It was the result of the conquest of the region in 1406 to 1407. The previous periods of Chinese rules, collectively known as the Bắc thuộc periods in Vietnam, were longer-lasting, constituting much of Vietnam's history from 111 BC to 939 AD. The fourth Chinese occupation of Vietnam was eventually ended with the establishment of the Lê dynasty.
Question: What year was the establishment of the Lê dynasty?
date

Passage: The western theater of the war has also been referred to as "Grey Lock's War". On August 13, 1723, Gray Lock entered the war by raiding Northfield, Massachusetts, when four warriors killed two citizens near Northfield. The next day, they attacked Joseph Stevens and his four sons in Rutland, Massachusetts. Stevens escaped, two of the boys were killed, and the other two sons were captured.:117  On October 9, 1723, Gray Lock struck two small forts near Northfield, inflicting casualties and carrying off one captive.:119 In response, Governor Dummer ordered the construction of Fort Dummer in Brattleboro, Vermont. The fort became a major base of operations for scouting and punitive expeditions into Abenaki country.:119 Fort Dummer was Vermont's first permanent settlement, made under the command of Lieutenant Timothy Dwight. On June 18, 1724, Grey Lock attacked a group of men working in a meadow near Hatfield, Massachusetts. He then moved on and killed men at Deerfield, Northfield, and Westfield over the summer. In response to the raids, Dummer ordered more soldiers for Northfield, Brookfield, Deerfield, and Sunderland, Massachusetts.:121 On October 11, 1724, 70 Abenakis attacked Fort Dummer and killed three or four soldiers. In September 1725, a scouting party of six men was sent out from Fort Dummer. Grey Lock and 14 others ambushed them just west of the Connecticut River, killing two and wounding and capturing three others. One man escaped, while two Indians were killed.:126
Question: When did the four warriors attack four sons?

date