Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
     THICK STEMMED, WOODY VINE TO 6 FT. WITH MILKY SAP. JBRACTS RHS GERA?NIUM LAKE 20/1 OR PORCEL?AIN ROSE 620       KENNETT SQUARE, LONGWOOD GARDENS GREENHOUSE #9, ACC.L. 153 iJ6    1955-11-16 ,    milii Ndi=:  EUPHORBIA -  1662708 OpskE           
{"catalogNumber": "1662708", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "milii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1955-11-16", "habitat": "", "occurrenceRemarks": "Thick stemmed, woody vine to 6 ft. with milky sap. Bracts RHS Geranium Lake 20/1 or Porcelain Rose 620", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Kennett Square, Longwood Gardens greenhouse #9, Acc.L. 153", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}