The category "<line_loc-gapsout_null-gapsin_null>" can be expressed as follows:
<det-sing-def> <line_type>
<det-sing-deictic> <line_type>
<line_loc-gapsout_null-gapsin_null> <line_mod-gapsout_null-gapsin_null>
<line_name-gapsout_null-gapsin_null>