Task: Question Generation
Input (English): Context: But the first time we left Mat in the house unattended , he chewed up one set , and Ginger finished the other set off by crawling through them and breaking them . We ' ve replaced one , but in order to avoid the new blinds from meeting the same fate as the old ones , they are permanently tied off at the halfway mark . Which means the bottom half of our 6 ft long windows are completely exposed .
Output (English): Why did the writer tie off their blinds at the halfway mark ?