How long will it take me to drive to Mary's office if I leave at 3pm?
[IN:GET_ESTIMATED_DURATION How long will it take me to [SL:METHOD_TRAVEL drive ] to [SL:DESTINATION [IN:GET_LOCATION_WORK [SL:CONTACT Mary ] 's office ] ] if I leave [SL:DATE_TIME_DEPARTURE at 3 pm ] ? ]