Task: Question Answering
Input (English): passage: West Edmonton Mall (WEM), located in Summerlea, Edmonton, Alberta, Canada, is the largest shopping mall in North America, followed by Mall of America, and the 23rd largest in the world (along with The Dubai Mall) by gross leasable area. It was the world's largest mall until 2004. The mall was founded by the Ghermezian brothers, who emigrated from Iran in 1959.
 question: is west edmonton mall the biggest in the world?
Output (English): No