The rules that use the category "<discourse_det-pl>" are:

<np-gapsout_null-gapsin_null-unit>

<discourse_det-pl> <n-pl-unit>

<np-gapsout_null-gapsin_null-unit-pl>

<discourse_det-pl> <n-pl-unit>

<np-gapsout_null-gapsin_null-orientation-pl>

<discourse_det-pl> <n-pl-orientation>

<np-gapsout_null-gapsin_null-breach-pl>

<discourse_det-pl> <n-pl-breach>

<np-gapsout_null-gapsin_null-attack-pl>

<discourse_det-pl> <n-pl-attack>

<np-gapsout_null-gapsin_null-np_type_null-pl>

<discourse_det-pl> <n-pl-np_type_null>

<np-gapsout_null-gapsin_null-attack>

<discourse_det-pl> <n-pl-attack>

<np-gapsout_null-gapsin_null-point_loc-pl>

<discourse_det-pl> <n-pl-point_loc>

<np-gapsout_null-gapsin_null-enemy-pl>

<discourse_det-pl> <n-pl-enemy>

<np-gapsout_null-gapsin_null-compass_direction-pl>

<discourse_det-pl> <n-pl-compass_direction>

<np-gapsout_null-gapsin_null-resupply-pl>

<discourse_det-pl> <n-pl-resupply>

<np-gapsout_null-gapsin_null-scale_number-pl>

<discourse_det-pl> <n-pl-scale_number>

<np-gapsout_null-gapsin_null-kind-pl>

<discourse_det-pl> <n-pl-kind>