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: As the Grand Duchy of Finland was part of the Russian Empire from 1809 to 1918, a number of Russian speakers have remained in Finland. There are 33,400 Russian-speaking Finns, amounting to 0.6% of the population. Five thousand (0.1%) of them are late 19th century and 20th century immigrants or their descendants, and the remaining majority are recent immigrants who moved there in the 1990s and later.[citation needed] Russian is spoken by 1.4% of the population of Finland according to a 2014 estimate from the World Factbook.

A: When did immigrants form the Russian Empire?
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Q: Passage: The City of Charleston Fire Department consists over 300 full-time firefighters. These firefighters operate out of 19 companies located throughout the city: 16 engine companies, two tower companies, and one ladder company. Training, Fire Marshall, Operations, and Administration are the divisions of the department. The department operates on a 24/48 schedule and had a Class 1 ISO rating until late 2008, when ISO officially lowered it to Class 3. Russell (Rusty) Thomas served as Fire Chief until June 2008, and was succeeded by Chief Thomas Carr in November 2008.

A: How many companies aren't there in the City of Charleston Fire Department?
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Q: Passage: Homosexuality was decriminalised in Bermuda with the passage of the Stubbs Bill in May 1994. Legislation was introduced by Private Members Bill by PLP MP Wayne Furbert to amend the Human Rights Act of Bermuda to disallow Same Sex Marriage under the Act in February 2016. The OBA government simultaneously introduced a bill to permit Civil Unions. Both measures were in response to a decision by His Hon Mr. Justice Ian Kawaley, Chief Justice of Bermuda's earlier ruling that same sex spouses of Bermuda citizens could not be denied basic Human Rights.

A:
What happened due to the Stubbs Bill in February 1994?
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