looping:
  type: task
  script:
  - foreach <server.list_online_players> {
    - if <def[value].location.add[0,-1,0].spawner_type||none> == e@Spider {
      - if "<def[value].inventory.contains.display[Empty Spider Cage].qty[1]>" {
        - ^execute as_server 'give <def[value].name> minecraft:mob_spawner 1 0 {display:{Name:"&Spider Spawner"}, BlockEntityTag:{EntityId:Spider}}'
        - ^execute as_server 'execute <def[value].name> ~ ~ ~ setblock ~ ~-1 ~ minecraft:air'
        - ^take "bydisplay:<&6>Empty Spider Cage"
        }
      }
   }