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": ""}
   Pigeon River near Mullet Lake. v $   rWO ) 6236  r JOHN H. EHLERS  $R michigan  DEMERSUM 1. F]    Ceatophyllum 2,      &%;; CERATOPHYLLACEAE      QMY 1302452 CHEBOYGAN ^ OBd   S(u L. ceratophyllales 0t>a   -84.553836 F    ^ f|N Ceratophyllum demersum
{"catalogNumber": "1302452", "order": "Ceratophyllales", "family": "Ceratophyllaceae", "scientificName": "Ceratophyllum demersum", "scientificNameAuthorship": "L.", "genus": "Ceratophyllum", "subgenus": "", "specificEpithet": "demersum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "6236", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Cheboygan", "municipality": "", "locality": "Pigeon River near Mullet Lake.", "decimalLatitude": "", "decimalLongitude": "-84.553836", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}