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": ""}
1991-07-18 av   %Wpx nuttallii  >n 16189     ^< on W side of Bodi Lake,  e~r hydrocharitaceae   1kA (PLANCH.) H. ST. JOHN  g  "locally frequent" "stems reddish."  ~k 1284149   -85.329324 +) )     7d alismatale s   |dY Elodea   Lp` 46.698 565   WH+u edward g. vos luce V kh0    UNIT ED STATES a&   ~`  MALL OR MOSTLY DRIFTING OR WITH ADVENTITIOUS ROOTS. michigan Dmn|y 
{"catalogNumber": "1284149", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "", "scientificNameAuthorship": "(Planch.) H. St. John", "genus": "Elodea", "subgenus": "", "specificEpithet": "nuttallii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "16189", "verbatimEventDate": "1991-07-18", "habitat": "all or mostly drifting or with adventitious roots.", "occurrenceRemarks": "\"locally frequent\" \"Stems reddish.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Luce", "municipality": "", "locality": "on W side of Bodi Lake,", "decimalLatitude": "46.698565", "decimalLongitude": "-85.329324", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}