new demo directory

ps-grammar/demo/ordering.jsgf

+#JSGF V1.0;
+grammar restaurant_ordering;
+
+public <restaurant> = ([tobi] [please] bring <objects> to <deliveryLocations>);
+
+<deliveryLocations> = (table <numberOfTable>);
+
+<numberOfTable> = (one | two | three | four | five | six | seven | eight | nine);
+
+<objects> = (<drinks> | <snacks>);
+
+<drinks> = (orange juice) | beer | cola | (chocolate milk) | (energy drink) | (grape juice) | milk | water;
+<snacks> = (chocolate cookies) | chips | biscuits | bread | pringles | (strawberry cookies);

ps-grammar/demo/person.jsgf

+#JSGF V1.0;
+grammar ToBI_person;
+public <statement> = <naming>;
+<naming> = [(my name is) | (i am)] <name>;
+<name> = sebastian|leon|gynesh|leroy|nils|jonas|james|john|alfred|daniel|charles|luis|paul|richard|robert|michael|steve|anna|beth|carmen|jennifer|jessica|kimberly|kristina|laura|mary|sarah;

ps-grammar/demo/saveCommand.jsgf

+#JSGF V1.0;
+grammar restaurant_save_command;
+
+public <restaurant> = ([tobi] [please] save ( <deliveryLocations> | <objectCategory> ) [[to | on] [the | my]] ( <savePlaceLeft> | <savePlaceRight> | <savePlaceFront> | <savePlaceBack> ));
+<savePlaceFront> = front;
+<savePlaceBack> = back;
+<savePlaceLeft> = left;
+<savePlaceRight> = right;
+<deliveryLocations> = (table <numberOfTable>);
+<numberOfTable> = (one | two | three);
+<objectCategory> = (drinks | snacks);