#! 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',
                );
				

#print Dumper(%categories);

print "What is Category code for Technology Phones          | Output should be : TEC-PH 10001949? \n";


my $categorycode;
my $search = 'Technology Phones';
my @category = ();

foreach $categorycode (keys(%categories)) {
    if(ref($categories{$categorycode}) eq 'ARRAY' and
        grep { $_ eq $search } @{ $categories{$categorycode} }) {
        push(@category, $categorycode);
    } elsif(!ref($categories{$categorycode}) and $categories{$categorycode} eq $search) {
        push(@category, $categorycode);
    }
}

print join(", ", @category) . "\n";

##</code><code>##


## Facing problems for below serach and desired output
print "What is Category code for Furniture                  | Output should be : FUR-BO 10001798? \n";
print "What is Category code for (Furniture   Chairs)       | Output should be : OFF-LA 10000240? \n";
print "What is Category code for (Office Supplies  Storage) | Output should be : OFF-ST 10000107? \n";
print "What is Category code for (Office Supplies  Art)     | Output should be : OFF-AR 10003056? \n";
print "What is Category code for (Office Supplies  Labels)  | Output should be : OFF-LA 10000240? \n";