This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Q: Passage: Alsace is one of the most conservative régions of France. It is one of just two régions in metropolitan France where the conservative right won the 2004 région elections and thus controls the Alsace Regional Council. Conservative leader Nicolas Sarkozy got his best score in Alsace (over 65%) in the second round of the French presidential elections of 2007. The president of the Regional Council is Philippe Richert, a member of the Union for a Popular Movement, elected in the 2010 regional election. The frequently changing status of the région throughout history has left its mark on modern day politics in terms of a particular interest in national identity issues. Alsace is also one of the most pro-EU regions of France. It was one of the few French regions that voted 'yes' to the European Constitution in 2005.

A: What was Philippe Richert's score in Alsace?
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Q: Passage: External evidence is evidence of each physical witness, its date, source, and relationship to other known witnesses. Critics will often prefer the readings supported by the oldest witnesses. Since errors tend to accumulate, older manuscripts should have fewer errors. Readings supported by a majority of witnesses are also usually preferred, since these are less likely to reflect accidents or individual biases. For the same reasons, the most geographically diverse witnesses are preferred. Some manuscripts show evidence that particular care was taken in their composition, for example, by including alternative readings in their margins, demonstrating that more than one prior copy (exemplar) was consulted in producing the current one. Other factors being equal, these are the best witnesses. The role of the textual critic is necessary when these basic criteria are in conflict. For instance, there will typically be fewer early copies, and a larger number of later copies. The textual critic will attempt to balance these criteria, to determine the original text.

A: External evidence is evidence of each physical witness, its date, source, relationship to other known witnesses, and what else? 
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Q: Passage: At the end of World War I, the Rhineland was subject to the Treaty of Versailles. This decreed that it would be occupied by the allies, until 1935 and after that, it would be a demilitarised zone, with the German army forbidden to enter. The Treaty of Versailles and this particular provision, in general, caused much resentment in Germany and is often cited as helping Adolf Hitler's rise to power. The allies left the Rhineland, in 1930 and the German army re-occupied it in 1936, which was enormously popular in Germany. Although the allies could probably have prevented the re-occupation, Britain and France were not inclined to do so, a feature of their policy of appeasement to Hitler.

A:
When was the Treaty of Versailles written?
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