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": ""}
in vicinity of eustis  ^B   ` ` . cordata   1894-04-16 .jR,4        cordata 7        COMMELINALES6  Florida   ic      = > Pontderiaceae George V. Nash H    1659810 r<N  UNITED STATES hj-W 
{"catalogNumber": "1659810", "order": "Commelinales", "family": "Pontederiaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "cordata", "verbatimTaxonRank": "", "infraspecificEpithet": "cordata", "identifiedBy": "", "recordedBy": "George V. Nash", "recordNumber": "", "verbatimEventDate": "1894-04-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Florida", "county": "", "municipality": "", "locality": "In vicinity of Eustis", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}