Definition: 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.
Input: Passage: Construction is currently underway on the Miami Intermodal Center and Miami Central Station, a massive transportation hub servicing Metrorail, Amtrak, Tri-Rail, Metrobus, Greyhound Lines, taxis, rental cars, MIA Mover, private automobiles, bicycles and pedestrians adjacent to Miami International Airport. Completion of the Miami Intermodal Center is expected to be completed by winter 2011, and will serve over 150,000 commuters and travelers in the Miami area. Phase I of Miami Central Station is scheduled to begin service in the spring of 2012, and Phase II in 2013.
Output:
What year was to see the incompletion of the Miami Intermodal Center?