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": ""}
  4 Roert L. Wilbur        wG2 EUPHOR BIA 7644 +zo 3c         Dominica |m    _L common, stems erect    hyssopifolia ^mN   S:r euphorbiaceaPe   .nY3^ 1964-07-18  W Robert L. Wilbur
{"catalogNumber": "", "order": "", "family": "Euphorbiaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "hyssopifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Robert L. Wilbur", "recordedBy": "Robert L. Wilbur", "recordNumber": "7644", "verbatimEventDate": "1964-07-18", "habitat": "", "occurrenceRemarks": "common, stems erect", "associatedTaxa": "", "country": "Dominica", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}