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": ""}
   PORTULACASTRUM -     t 323       CARYOPHYLLALES  ,2n  Low beach area near mouth of river W[U   B1954-08-18 K  duval PAJ/   5I8X sesuvium portulacastrum    =-5F L.    SESUVIM  m#    
{"catalogNumber": "", "order": "Caryophyllales", "family": "", "scientificName": "Sesuvium portulacastrum", "scientificNameAuthorship": "L.", "genus": "Sesuvium", "subgenus": "", "specificEpithet": "portulacastrum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "323", "verbatimEventDate": "1954-08-18", "habitat": "Low beach area near mouth of river", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Duval", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}