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": ""}
 Spirodela (A    * marquette  q araceae  -p michigan   1960-09-09 []9 J    peter a. hyypio 2gL         U -87.90706  -4]A huron mountain club. UNITED STATES r  1474473 Wk:;   a SPIRODELA POLYRHIZA polyrhiza boVhC  (L.) SCHLEID. tx< .   U/.  46.88771   a SMALL POOL IN BOGGY AREA SURROUNDING PONY LAKE. 
{"catalogNumber": "1474473", "order": "", "family": "Araceae", "scientificName": "Spirodela polyrhiza", "scientificNameAuthorship": "(L.) Schleid.", "genus": "Spirodela", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Peter A. Hyypio", "recordNumber": "", "verbatimEventDate": "1960-09-09", "habitat": "Small pool in boggy area surrounding Pony Lake.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Marquette", "municipality": "", "locality": "Huron Mountain Club.", "decimalLatitude": "46.887701", "decimalLongitude": "-87.90706", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}