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": ""}
   x= Spirodela polyrhiza   R &Q| 1937-07-05 42.3 w   c5 (l.) schleid.  5E  ALISMATALES in huron rivr, ann arbor twp. gy8    $34 United States  1289957 ]  Ar4ceae 2 d`P  E. Landolt >$       nr   polyrhiza  oTc MICHIGN   [> 7888 -8373333 i?Z,Q    Rp  Carl O. Grassl  6t [active barcode. on sam e sheet lemna turionifera and wolffiacolumbiana with inactive barcodes 1289958 and 1289959 respectively]  U9?RS washtenaw  Yv@#  Spirodela
{"catalogNumber": "1289957", "order": "Alismatales", "family": "Araceae", "scientificName": "Spirodela polyrhiza", "scientificNameAuthorship": "(L.) Schleid.", "genus": "Spirodela", "subgenus": "", "specificEpithet": "polyrhiza", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. Landolt", "recordedBy": "Carl O. Grassl", "recordNumber": "7888", "verbatimEventDate": "1937-07-05", "habitat": "", "occurrenceRemarks": "[Active barcode. On same sheet Lemna turionifera and Wolffia columbiana with inactive barcodes 1289958 and 1289959 respectively]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "In Huron River, Ann Arbor Twp.", "decimalLatitude": "42.3", "decimalLongitude": "-83.73333", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}