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": ""}
   $ol spirodela      polyrhiza s&    n )W -85.2392b97 1474906       :% united states 43.70762 P     mecosta K    $,V [the one root tip apparently pointed] [inactive barcode. also in7 packet is lemna turionifera with active barcode 1474403]  aQ5 michigan j. funk AWo<5   Araceae _B   e. landolt [   P 1940-07-29
{"catalogNumber": "1474906", "order": "", "family": "Araceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Spirodela", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "J. Funk", "recordNumber": "", "verbatimEventDate": "1940-07-29", "habitat": "", "occurrenceRemarks": "[The one root tip apparently pointed] [Inactive barcode. Also in packet is Lemna turionifera with active barcode 1474403]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mecosta", "municipality": "", "locality": "", "decimalLatitude": "43.70762", "decimalLongitude": "-85.239297", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}