The category "<item>" can be expressed as follows:

<item>

<det-pl> <item_n-pl>

<det-pl> <item_n-pl> <location_mod>

<det-sing> <item_n-sing>

<det-sing> <item_n-sing> <location_mod>

<full_unit_call_sign>

<item_n>

<item_n> <location_mod>