How long will it take me to drive to my meeting if I left before noon?
[IN:GET_ESTIMATED_DURATION How long will it take me to [SL:METHOD_TRAVEL drive ] to [SL:DESTINATION [IN:GET_EVENT [SL:ORGANIZER_EVENT my ] [SL:CATEGORY_EVENT meeting ] ] ] if I left [SL:DATE_TIME_DEPARTURE before noon ] ? ]