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": ""}
 WEDD. xx  wolffia brasiliensis 8  michigan ~lE    1517840 iDve:     du  brasiliensis russell g. schipper  /S5=     anton a. reznicek :6UTB   hig concentrations. v/1z     f united states   G  ALLEGAN  ~ wolffia     alismatales  ;n  araceae 9t~ 
{"catalogNumber": "1517840", "order": "Alismatales", "family": "Araceae", "scientificName": "Wolffia brasiliensis", "scientificNameAuthorship": "Wedd.", "genus": "Wolffia", "subgenus": "", "specificEpithet": "brasiliensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Russell G. Schipper", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "high concentrations.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Allegan", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}