my %hash = ( 'company' => { 'microsoft' => {'applications' => {'windows' => 'operating system', 'office' => 'office suite'} ,'people' => {'bill gates' => 'chair man'} }, 'sun microsystems' => {'applications' => {'solaris' => 'operating system', 'star office' => 'office suite'} }, 'cross over' => {} } );