#follower.traveler  someone who travels behind or pursues another
  supertype:  traveler__traveller  a person who changes location
  subtype:  pursuer.follower__chaser  a person who is pursuing and trying to overtake or capture; "always before he had been able to outwit his pursuers"
  subtype:  shadow.follower  an inseparable companion; "the poor child was his mother's shadow"
  subtype:  shadower__tail__shadow  a spy employed to follow someone and report their movements

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