Write queries in XSLT and XQuery to output customer elements with associated account elements nested within the customer elements, given the bank information representation using ID and IDREFS as shown below.

<!DOCTYPE bibliography [

<!ELEMENT book (title, author+, year, publisher, place?)>

<!ELEMENT article (title, author+, journal, year, number, volume, pages?)>

<!ELEMENT author ( last-name, first-name) >

<!ELEMENT title ( #PCDATA )>

· · · similar PCDATA declarations for year, publisher, place, journal, year,

number, volume, pages, last-name and first-name

] >