Npc creater/selector/remover:
  type: world
  events:
    on create command:
    - create player "Citizen" <player.location> save:Test
    - run remover as:<entry[Test].created_npc> delay:10
remover:
  type: task
  script:
  - execute as_server "npc sel <npc>"
  - execute as_server "npc rem"