The syntax for the language can be seen in the examples hotelBookingTemplate.df, alarm.df and flightBooking.df.
An example which uses inheritance to support multiple systems in one program can be seen here:
system HotelBookingTemplate
entity star
reference "1 star"
reference "2 stars"
reference "3 stars"
reference "4 stars"
reference "5 stars"
entity hotelcountry
reference "Denmark"
reference "Germany"
reference "USA"
system HiltonDenmarkBooking extends HotelBookingTemplate
entity hilton_accomodation_type
reference "apartment" synonyms "apartments"
reference "hotel" synonyms "hotels"
reference "motel" synonyms "motels"
entity hilton_room_type
reference "Hilton King suite"
reference "2-persons suite"
reference "4-persons suite"
intent WelcomeHilton
phrases
expression "Can i book a room on a Hilton hotel?"
responses
reply "I have the room types $hilton-room-type in Denmark, but i also have hotels in these following $hotelcountries ?"
actions
param hilton_room_type type hilton_room_type "hilton-room-type"
param hotelcountry type hotelcountry "hotelcountries"
system HiltonOdenseBooking extends HiltonDenmarkBooking
entity odense_locations
reference "Odense SØ"
reference "Kerteminde" synonyms "Kærteminde"
reference "Dalum"
intent BookOdense
phrases
expression "Book ", "5 star" as star, " hilton hotel in", " Odense" as odense_locations
responses
reply "I have these locations in Odense $odenselocations with these roomtypes $hilton-room-type ?"
actions
param hilton_room_type type hilton_room_type "hilton-room-type"
param star type star "star"
param odense_locations type odense_locations "odenselocations"
system ComwellBooking extends HotelBookingTemplate
intent BookComwell
phrases
expression "Can i book a ", " 5 star" as star, " comwell hotel in ", " denmark" as hotelcountry
responses
reply "Okay. I have reserved $star star hotel in $location"
actions
param hotelcountry type hotelcountry "location"
param star type star "star"