How long will it take me to get to school if I leave from here in 20 minutes?
[IN:GET_ESTIMATED_DURATION How long will it take me to get to [SL:DESTINATION [IN:GET_LOCATION_SCHOOL school ] ] if I leave from [SL:SOURCE [IN:GET_LOCATION [SL:LOCATION_USER here ] ] ] [SL:DATE_TIME_DEPARTURE in 20 minutes ] ? ]