Detailed Instructions: 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.
Problem:Passage: Within a month of the battle, in December 1315, the Confederates renewed the oath of alliance made in 1291, initiating a period of growth within the Confederacy. In March 1316 Emperor Louis IV confirmed the rights and privileges of the Forest Cantons. However, Leopold prepared another attack against the Confederacy. In response, Schwyz attacked some of the Habsburg lands and Unterwalden marched into the Bernese Oberland. Neither side was able to prevail against the other, and in 1318 the isolated Forest Cantons negotiated a ten-month truce with the Habsburgs, which was extended several times. By 1323 the Forest Cantons had made alliances with Bern and Schwyz signed an alliance with Glarus for protection from the Habsburgs. Within 40 years cities including Lucerne, Zug and Zurich had also joined the Confederacy. The Confederate victory gave them virtual autonomy and, for a time, a peace with the Habsburgs that lasted until the Battle of Sempach in 1386.
Question: How many years after the Forest Cantons negotiated a ten-month truce with the Habsburgs was it before the Battle of Sempach?
Answer type: Number
Solution:
68.