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": ""}
united states sBO        $IvpG var. Rosales .     TV (MICHX.) MAXIM.   5& isle royale, on paul island (outer) 921 $r    oQ% KEWEENAW Rubus hB  ROSACEAE JMJxA   idaeus $`     >; Ig -88.84917 strigosus tK  michigan H    o 1470910  x Carl O. Grassl 1931-08-2 .yI   SCA#1 47.b91444 Mark P. Widrlechner  +!* 
{"catalogNumber": "1470910", "order": "Rosales", "family": "Rosaceae", "scientificName": "", "scientificNameAuthorship": "(Michx.) Maxim.", "genus": "Rubus", "subgenus": "", "specificEpithet": "idaeus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "strigosus", "identifiedBy": "Mark P. Widrlechner", "recordedBy": "Carl O. Grassl", "recordNumber": "921", "verbatimEventDate": "1931-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "Isle Royale, On Paul Island (outer)", "decimalLatitude": "47.91444", "decimalLongitude": "-88.84917", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}