You will be given a definition of a task first, then some input of the task.
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.

Passage: The Supreme Court of the United Kingdom is the ultimate court for criminal and civil matters in England, Wales and Northern Ireland and for civil matters in Scotland. (The supreme court for criminal matters in Scotland is the High Court of Justiciary.) The Supreme Court was established by the Constitutional Reform Act 2005 with effect from 1 October 2009, replacing and assuming the judicial functions of the House of Lords. Devolution issues under the Scotland Act 1998, Government of Wales Act and Northern Ireland Act were also transferred to the new Supreme Court by the Constitutional Reform Act, from the Judicial Committee of the Privy Council.
Output:
The Constitutional Reform Act of 2009 established what?