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": ""}
   b 43.091266    6643 T4wE    l. ST   1474390 m K   e!lFE 1958-06-18   K0 emna trisulca    Q_?f edward g. voss  ]j trisulca    apparently not common, in very shallow water, muddy pond.   Y  -83.168856 nN0  United States #a   Lemna a   LAPE3R ~ 
{"catalogNumber": "1474390", "order": "", "family": "", "scientificName": "Lemna trisulca", "scientificNameAuthorship": "L.", "genus": "Lemna", "subgenus": "", "specificEpithet": "trisulca", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "6643", "verbatimEventDate": "1958-06-18", "habitat": "Apparently not common, in very shallow water, muddy pond.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Lapeer", "municipality": "", "locality": "", "decimalLatitude": "43.091266", "decimalLongitude": "-83.168856", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}