The rules that use the category "<full_unit_call_sign>" are:

<n>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-proper_name-sing-unit>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-sing-unit>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-sing>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-unit>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-proper_name-sing>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<unit-gapsout_null-gapsin_null-sing>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<n-proper_name>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<unit-gapsout_null-gapsin_null>

<force> <full_unit_call_sign>

<full_unit_call_sign>

<full_unit_call_sign> and <full_unit_call_sign>

<n-proper_name-unit>

<force> <full_unit_call_sign>

<full_unit_call_sign>