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.
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Question: Passage: Furthermore, in terms of job prospects, as of 2014 the average starting salary of an Imperial graduate was the highest of any UK university. In terms of specific course salaries, the Sunday Times ranked Computing graduates from Imperial as earning the second highest average starting salary in the UK after graduation, over all universities and courses. In 2012, the New York Times ranked Imperial College as one of the top 10 most-welcomed universities by the global job market. In May 2014, the university was voted highest in the UK for Job Prospects by students voting in the Whatuni Student Choice Awards Imperial is jointly ranked as the 3rd best university in the UK for the quality of graduates according to recruiters from the UK's major companies.

Answer: What collegege had the highest higher rate in 2014 among graduates?

Question: Passage: At present the A35 autoroute, which parallels the Rhine between Karlsruhe and Basel, and the A4 autoroute, which links Paris with Strasbourg, penetrate close to the centre of the city. The Grand contournement ouest (GCO) project, programmed since 1999, plans to construct a 24 km (15 mi) long highway connection between the junctions of the A4 and the A35 autoroutes in the north and of the A35 and A352 autoroutes in the south. This routes well to the west of the city and is meant to divest a significant portion of motorized traffic from the unite urbaine.

Answer: What does the A35 link Strasbourg with?

Question: Passage: The cup triumph was also Everton's passport to the Cup Winners' Cuptheir first European campaign in the post-Heysel era. Progress under Joe Royle continued in 199596 as they climbed to sixth place in the Premiership. A fifteenth-place finish the following season saw Royle resign towards the end of the campaign, to be temporarily replaced by club captain, Dave Watson. Howard Kendall was appointed Everton manager for the third time in 1997, but the appointment proved unsuccessful as Everton finished seventeenth in the Premiership; only avoiding relegation due to their superior goal difference over Bolton Wanderers. Former Rangers manager Walter Smith then took over from Kendall in the summer of 1998 but only managed three successive finishes in the bottom half of the table.

Answer:
In what season did Heysel stop managing Everton?