The rules that use the vocabulary item "line" are:

<nlb-careful>

<abort_verb> nine line brief

<formation_mod>

on line

<line_type-color-sing>

line

phase line

<nlb-nlb2>

<abort_verb> nine line brief

<nlb-nlb6>

<abort_verb> nine line brief

<controller_flight_advisory>

send nine line brief

ship nine line brief

stand by for nine line

stand by for nine line brief

stand by nine line

stand by nine line brief

stand by to copy nine line

stand by to copy nine line brief

transmit nine line brief

<nlb-not_command_or_system_utterance_or_user_response>

<abort_verb> nine line brief

<line_type-sing>

boundary line

coordinated fire line

fire support coordination line

line

line of departure

phase line

<nlb-nlb3>

<abort_verb> nine line brief

<nlb-nlb7>

<abort_verb> nine line brief

<displayable_thing-gapsout_null-gapsin_null>

miclic line

<air_formation_nom>

line abreast

<nlb-nlb4>

<abort_verb> nine line brief

<nlb-nlb8>

<abort_verb> nine line brief

<line_type>

boundary line

coordinated fire line

fire support coordination line

line

line of departure

line of departures

phase line

<nlb-nlb1>

<abort_verb> nine line brief

<nlb-nlb5>

<abort_verb> nine line brief

<nlb-nlb9>

<abort_verb> nine line brief