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": ""}
    8297 xKn      YhY 1916-07-31      PORTAGE PARK, ?+D9+     DUNES, ^   1248746 KrSz    -86.260725 %  rotundifolia   [/    R(P] CAMPANULA L.M. UMBACH g 
{"catalogNumber": "1248746", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Campanula", "subgenus": "", "specificEpithet": "rotundifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.M. Umbach", "recordNumber": "8297", "verbatimEventDate": "1916-07-31", "habitat": "Dunes,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Portage Park,", "decimalLatitude": "", "decimalLongitude": "-86.260725", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}