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  "type": "FeatureCollection",
  "title": "Milecastle 37 (Housesteads)",
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  ],
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        "description": "representative point"
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      "id": "boundary-of-milecastle-walls",
      "type": "Feature",
      "properties": {
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        "location_precision": "precise",
        "title": "Boundary of milecastle walls",
        "link": "http://pleiades.stoa.org/places/893595278/boundary-of-milecastle-walls"
      }
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}