Detailed Instructions: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
See one example below:
Problem: In 1582 the united provinces invited francis, duke of anjou to lead them; but after a failed attempt to take antwerp in 1583, the duke left the netherlands again. after the assassination of william of orange (10 july 1584), both henry iii of france and elizabeth i of england declined the offer of sovereignty. however, the latter agreed to turn the united provinces into a protectorate of england (treaty of nonsuch, 1585), and sent the earl of leicester as governor-general. this was unsuccessful and in 1588 the provinces became a confederacy. the union of utrecht is regarded as the foundation of the republic of the seven united provinces, which was not recognized by the spanish empire until the peace of westphalia in 1648.
Solution: In what year did francis, duke of anjou leave the netherlands?
Explanation: The generated question is perfect. Because the question is based on second sentence of the input passage and its answer is 1583.

Problem: A new study suggests that listening to music in the office improves the speed and accuracy of tasks such as data entry, proof reading and problem solving. In an office-based experiment, 88 per cent of participants were found to produce their most accurate work when listening to music. The study also found that 81 per cent completed their fastest work when music was played. And it matters what type of music you listen to. For instance, if you're doing your tax returns, then classical music is the most effective as it improves maths skills. Listening to Jessie Jor Justin Bieber could also improve your speed, with 58 per cent of participants completing data entry tasks faster while listening to pop songs. During proof-reading, dance music, such as David Guetta, had the biggest positive impact with participants increasing their speed by 20 per cent compared to tests undertaken with no music at all. Dance music also had a positive effect on spell-checking with a 75 per cent pass rate compared to 68 per cent when no music was played at all. The research, undertaken by Brighton-based Mind lab International, suggests that silent offices may be the least productive. 'The Music Works experiment revealed a positive _ between music and productivity - overall it showed that when listening to music, nine out of 10 people performed better,' said Dr David Lewis, chairman of Mind lab International.
Solution:
Supposing you are an office worker doing tax returns, what kind of music can improve your working efficiency?