when i will be arriving at Dad's house if started from here now.
[IN:GET_ESTIMATED_ARRIVAL when i will be arriving at [SL:DESTINATION [IN:GET_LOCATION_HOME [SL:TYPE_RELATION Dad ] 's house ] ] if started from [SL:SOURCE [IN:GET_LOCATION [SL:LOCATION_USER here ] ] ] [SL:DATE_TIME_DEPARTURE now ] . ]