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": ""}
POTAMOGETON sWM_  Emmet (l   Potamogeton richardsonii m,S  (a. benn.) rydb. HuP)  1933-08-16 *    OcnD; Paradise Lake richardsonii y  45.68818 x  >P  alismatales sE@    JOHN H. EHLERS =^p       1281696 $f k   5462 K S     MICHIGAN /@B[     Unite States s B 
{"catalogNumber": "1281696", "order": "Alismatales", "family": "", "scientificName": "Potamogeton richardsonii", "scientificNameAuthorship": "(A. Benn.) Rydb.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "richardsonii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "5462", "verbatimEventDate": "1933-08-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "Paradise Lake", "decimalLatitude": "45.68818", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}