Based on the given context, craft a common-sense question, especially those that are LONG, INTERESTING, and COMPLEX. The goal is to write questions that are easy for humans and hard for AI machines! To create such questions, here are some suggestions: A. What may (or may not) be the plausible reason for an event? B. What may (or may not) happen before (or after, or during) an event? C. What may (or may not) be a plausible fact about someone (or something)? D. What may (or may not) happen if an event happens (or did not happen)? You can also create other types of questions. DO NOT make your question answerable without looking at the context, or question of which the correct answer can be directly extracted from the context. DO NOT ask a question that requires very specialized knowledge that is not common sense. DO NOT ask too simple or too short questions. Your question must be related to the context and answerable with common sense. Try to add more variations and complexity to the questions.

Q: Context: I am a complete noob to playing jazz piano . There were like 3 rounds of playing . I felt a tad ashamed that I did n't keep up to the coach 's expectations . He is a very famous coach here for musicals , national day and loads of arts events .

A: What will happen if the narrator plays piano in a week or so ?
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Q: Context: He waved back . Well , this night should be promising . Elizabeth did look sort of tired , she was probably surprised to see him , but she hid it behind pleasant smiles and her poised voice . And what did the headmaster say about the after party ? There was going to be a band ?.

A: What may be the reason reason Elizabeth smiled ?
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Q: Context: Recently I purchased some canisters for flour and sugar , only to discover they 're not entirely airtight . Since I live in Seattle and the humidity is pretty high here , that 's a problem . Especially for the sugar , which tends to get clumpy and gross . So , I plan to empty 'em out and store popcorn , rice , and pasta in them instead . I used up the flour and white sugar , but the brown sugar is a problem .

A:
what did he have to do before he purchased the canisters ?
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