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": ""}
   araceae U     %HxSO marsh james b. mcfrlin Oc  (Michx.) Morong  aL!0   1662439 3T 4           Qx SAGITTIFOLIA 3710   TO     p@cL Polk  1930-11-12 Z(W4  
{"catalogNumber": "1662439", "order": "", "family": "Araceae", "scientificName": "", "scientificNameAuthorship": "(Michx.) Morong", "genus": "", "subgenus": "", "specificEpithet": "sagittifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "James B. McFarlin", "recordNumber": "3710", "verbatimEventDate": "1930-11-12", "habitat": "Marsh", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Polk", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}