The category "<np-gapsout_null-gapsin_null-attack>" can be expressed as follows:
<np-gapsout_null-gapsin_null-attack-not_wh_or_dummy> <postnommod-attack>
<np-gapsout_null-gapsin_null-attack-not_wh_or_gq_or_dummy> <postnommod-attack>
<pre_det> <np-not_mod-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy>
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what