Task: Question Generation
Input (English): 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 .
Output (English): what did he have to do before he purchased the canisters ?