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": ""}
1957-06-27 >=L     m~U+ United States   MICHIGAN P  lem3na w    4327 6A    s+[ -84.56667    H! EDWARD G. VOSS  1474444 [  GLADWIN M)  minor 6      Alismatales )a9=N      O&  Araceae 
{"catalogNumber": "1474444", "order": "Alismatales", "family": "Araceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Lemna", "subgenus": "", "specificEpithet": "minor", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "4327", "verbatimEventDate": "1957-06-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Gladwin", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-84.56667", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}