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": ""}
   Cfd united states  f0C  heteranthera dubia    )`~ MICHIGAN   0M/0] washteaw       m.r. raymond u     EDWARD G. VOSS a,>Q   (jacq.) macmill. o ~^    -83.807642  y  1938-09-13 IA   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Heteranthera dubia", "scientificNameAuthorship": "(Jacq.) MacMill.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "M.R. Raymond", "recordNumber": "", "verbatimEventDate": "1938-09-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.807642", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}