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": ""}
     O B. Walker   17 zw%9    (RT POTAMOGETON       Ji~*g Potamogeton praelongus   Y sand lake  Lenawee _~F>   8 michigan    WULFEN 0sy<  -8|4.135784 fB~@   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Potamogeton praelongus", "scientificNameAuthorship": "Wulfen", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "B. Walker", "recordNumber": "17", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Lenawee", "municipality": "", "locality": "Sand Lake", "decimalLatitude": "", "decimalLongitude": "-84.135784", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}