The category "<np-gapsout_null-gapsin_null-unit-def-sing>" can be expressed as follows:

<np-gapsout_null-gapsin_null-unit-def-sing>

<discourse_det-def-sing> <n-sing-unit>

<n-not_proper_name-sing-unit>

<n-proper_name-sing-unit>

<n-proper_name-sing-unit> <conj-or> <n-proper_name-unit>

<n-proper_name-sing-unit> <n-proper_name-sing-unit> <conj-or> <n-proper_name-unit>

<n-proper_name-unit> <poss> <n-sing-unit>

<np-gapsout_null-gapsin_null-unit-def-sing> <postnommod-unit>

it