Question: Write a query in XQuery on the XML representation as shown below to compute the left outer join of customer elements with account elements. account-number

Write a query in XQuery on the XML representation as shown below to compute the left outer join of customer elements with account elements. 

account-number ID #REQUIRED

owners IDREFS #REQUIRED >

customer-id ID #REQUIRED

accounts IDREFS #REQUIRED >

· · · declarations for branch, balance, customer-name,

customer-street and customer-city · · · ] >

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