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": ""}
1940-07-20 `   1474462 Lp    J. Funk PPGp$   UNITED STATES [m  TUBBS LAKE. %  (l.) schleid.  BXf  -85.204128 fQjUl    7 Meco5ta Alismatales 5    SPIRODELA POLYRHIA 2,$GJ   SPIRODELA G  S.N. #m.    7s 43.713512  81 POLYRHIZA  d yz MICHIGAN  Depth of Water: 0, Bottom: Muck.      3y!%c "Common on surfae"  
{"catalogNumber": "1474462", "order": "Alismatales", "family": "", "scientificName": "Spirodela polyrhiza", "scientificNameAuthorship": "(L.) Schleid.", "genus": "Spirodela", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. Funk", "recordNumber": "s.n.", "verbatimEventDate": "1940-07-20", "habitat": "Depth of Water: 0, Bottom: Muck.", "occurrenceRemarks": "\"Common on surface\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mecosta", "municipality": "", "locality": "Tubbs Lake.", "decimalLatitude": "43.713512", "decimalLongitude": "-85.204128", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}