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

<range-recursive>

<distance> nautical miles

<range>

<distance> nautical miles

<distance_unit-sing>

nautical mile

<nlb-not_command_or_system_utterance_or_user_response>

<distance> nautical miles

<nlb-nlb3>

<distance> nautical miles

<nlb-not_careful-nlb3>

<distance> nautical miles

<distance_unit>

nautical mile

nautical miles

<distance_unit-pl>

nautical miles