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      "title" : "The collection document"
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    "TOELICHTING" : "https://geoportaal.fryslan.nl/arcgis/rest/services/CHK2/MapServer/50/11/attachments/10",
    "ONTSTAAN" : "Voor 1200",
    "SYSTEEM" : "Oude zeepolders",
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    "OMSCHRIJVING_RIENKS_EN_WALTHER" : "Verbindingsdijk tussen de zeepolderdijk van Witmarsum en de oudste, noordelijke zeedijk van Pingjum. De dijk moet zijn aangelegd met het doel een schakel te vormen in de binnendijk tussen de Kliuw en Abe Hearingasyl om op die manier het genoemde binnendijkse land te beschermen voor doorbraken van Fryslâns zuidelijke en westelijke zeedijken. De Griene Dyk valt op door de korte, rechte delen en doorgaans haakse bochten in het tracé. Dit biedt een aanwijzing, dat hij langs perceelscheidingen is gelegd als een echte binnendijk. Op de plekken, waar hij niet of amper is afgegraven, is de helling naar de buiten(west)kant duidelijk flauwer dan naar de binnenkant. De dijk is circa dertien meter breed.",
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