(Apple=>10,
 Peach=>5,
 Berry=>9,
 Cobbler=>3,
 Cherry=>7
)

##</code><code>##

(Apple, Peach, Berry, Cobbler, Cherry)

##</code><code>##

$inv{Apple} <=> $inv{Peach}    
$inv{Peach} <=> $inv{Berry}    
$inv{Peach} <=> $inv{Cobbler}   
...