#! perl
use strict;
use warnings;
use Data::Dumper;

my %categories = ("FUR-BO 10001798" => 'Furniture',
                  "FUR-CH 10000454" => [ 'Furniture' , 'Chairs'],
                  "OFF-LA 10000240" => [ 'Office Supplies' , 'Labels'],
                  "OFF-ST 10000107" => [ 'Office Supplies' , 'Storage'],
                  "OFF-AR 10003056" => [ 'Office Supplies' , 'Art'],
                  "TEC-PH 10001949" => 'Technology Phones',
                );
my @items = ('Furniture',
'Furniture,Chairs',
'Technology Phones',
'Office Supplies,Storage',
'Office Supplies,Art',
'Office Supplies,Labels');

Search(split /,/,$_) for @items;
exit 0;

sub Search{
	 my (@search_words) = @_;
	 print "Searching for @search_words ...\n";
     my @category = ();
     
     foreach my $categorycode (keys(%categories)) {
         if(ref($categories{$categorycode}) eq 'ARRAY' ){ 
            if ( $#{ $categories{$categorycode} } == $#search_words
                 and join ("", @{ $categories{$categorycode}}) eq join ("",@search_words)){
                push @category, $categorycode;
            }
            next;
         }
         if(my $reftype = ref($categories{$categorycode})){
         	die "ERROR: Unxpected type: $reftype for item $categorycode";
         }

         if( $categories{$categorycode} eq $search_words[0]  and @search_words ==1) {
             push(@category, $categorycode);
         }
     }
     
     print join(", ", @category) . "\n";
}