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

<user_dialog_command-command>

i <mean_verb> <response_utterance-discourse_command>

<authentication_verb>

i authenticate

<np-not_mod-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy>

i

<action_query-system_utterance>

<np-gapsout_null-gapsin_null-wh> should i <system_operation-system_utterance-gapsout_null-gapsin_np_gap>

<np-gapsout_null-gapsin_null-system-not_wh_or_gq_or_dummy>

i

<np-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy>

i

<np-gapsout_null-gapsin_null-system-not_wh_or_gq_or_dummy-sing>

i

<beg_pardon_command>

i beg your pardon

<np-gapsout_null-gapsin_null-system-not_wh-sing>

i

<user_dialog_command-user_response>

i <mean_verb> <response_utterance-discourse_user_response>

<np-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy-sing>

i