gprs grammar small changes for fixing the stupid bug

pocketsphinxAdapter/grammar/gprs/gprs.jsgf

@@ -4,12 +4,12 @@ public <task> = [tobi] [(would | could) you] [please] <command> [please] [tobi];
 
 <command> = <bring_command> | <goto_command> | <follow_command> | <find_command> | <put_command> | <learn_command> | <wait>;
 
-<bring_command> = <bringVerb> [<person>] [the | an | a | some | this] <grab_object> [from | into | to] [<location> | <person>];
+<bring_command> = <bringVerb> [<person>] [<article>] <grab_object> [from | into | to] [<location> | <person>];
 <goto_command> = <gotoVerb> <preposition> <location>;
 <follow_command> = <followVerb> <person>;
-<find_command> = <findVerb> ([the | an | a | some | this] <grab_object> | <person>) [in <location>];
+<find_command> = <findVerb> ([<article>] <grab_object> | <person>) [in <location>];
 <put_command> = <putVerb> <grab_object> <preposition> <location>;
-<learn_command> = <learnVerb> [the | a | an | this] (<person> | <location>);
+<learn_command> = <learnVerb> [<article>] (<person> | <location>);
 
 <bringVerb> = bring | carry | retrieve | fetch | get | give;
 <findVerb> = find | search for;
@@ -18,7 +18,7 @@ public <task> = [tobi] [(would | could) you] [please] <command> [please] [tobi];
 <followVerb> = follow;
 <learnVerb> = learn | remember | memorize;
 
-<person> = someone | <personal_pronoun> | <person_name> | (the | a | this) (person | man | woman | guy | girl | boy | human | robot);
+<person> = someone | <personal_pronoun> | <person_name> | [<article>] (person | man | woman | guy | girl | boy | human | robot);
 <personal_pronoun> = him | her | me;
 <person_name> = james|john|robert|michael|william|david|richard|charles|linda|thomas|mary|patricia|joseph|dorothy|barbara|susan|jennifer|maria|elizabeth|margaret;
 
@@ -28,7 +28,7 @@ public <task> = [tobi] [(would | could) you] [please] <command> [please] [tobi];
 <drink_class> = coke | beer | wine | redbull | water | juice;
 <snack_class> = cookies | peanuts | chocolate | hazelnuts | noodles;
 
-<location> = [the | an | a | this] (<appliance_class> | <shelf_class> | <seat_class> | <table_class> | <bin_class> | <decoration_class> | <room_class> | location | room | appliance | shelf | seat | table | bin | decoration | somewhere);
+<location> = [<article>] (<appliance_class> | <shelf_class> | <seat_class> | <table_class> | <bin_class> | <decoration_class> | <room_class> | location | room | appliance | shelf | seat | table | bin | decoration | somewhere);
 <appliance_class> = fridge | sink | tv;
 <shelf_class> = hanger | shelf;
 <seat_class> = couch | lounge | bed | armchair;
@@ -38,4 +38,5 @@ public <task> = [tobi] [(would | could) you] [please] <command> [please] [tobi];
 <room_class> = kitchen | living_room | dining_room;
 <preposition> = (on [top of]) | in | ([next] to) | at | near | in | into | from;
 
+<article> = the | an | a | some | this;
 <wait> = wait;