#driver.worker  someone who drives animals that pull a vehicle
  supertype:  worker  a person who works at a specific job; "he is a good worker"
  subtype:  charioteer  the driver of a chariot
  subtype:  coachman  a man who drives a coach (or carriage)
  subtype:  lasher  a driver who urges the animals on with lashes of a whip
  subtype:  mahout  (India) the driver and keeper of an elephant
  subtype:  teamster  the driver of a team of horses doing hauling
  subtype:  wagoner__waggoner  the driver of a wagon

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