Definition: This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Input: Passage: Duke Magnus Birgersson proclaiming himself king of Sweden, refused to pay the agreed sum of 6,000 marks of silver and complained about the ravages the Danish Assistance Force allegedly committed. Instead, he started a war by moving into the then Danish provinces of Halland and Skane by total surprise in the fall of 1276.The Danes mobilized an army under marsh Uffo that stopped the Swedish army who then fled Scania. The next year Danish forces marched on Smaland in retaliation for their depredations in Halland and Skane. The Danish punitive expedition followed the scarce Swedish Defense Forces into Vastergotland, where they met a Swedish part of the army of about 200 knights in armour, led by Ulf Karlsson. The Battle of Ettak was a defeat for the Danish army who were surprised in their own camp. Erik Klipping gathered a large army in 1277 and went into Vastergotland which again was overcome and looted. The fortresses of Axwall and Skara was captured by the Danish army. Eric V of Denmark decided to end the campaign because it was not meant as anything other than an act of revenge in response to the Swedish king's assault on Halland and Skane. After returning home, Eric V of Denmark began negotiations with the Swedes leading to a peace agreement in Laholm, Scania in early 1278. Magnus Birgersson had to pay war reparations which were reduced from 6,000 to 4,000 marks of silver.
Question: How many Danish provinces did Birgersson attack in the fall of 1276?
Answer type: Number
Output:
2.