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": ""}
    -68.5 ?     Hfh  81.75   u`EF Nunavut  i qikiqtaaluk Myrtales `+%BG   chamaenerion latifolium c>E   *I  dry gravel-sand terrace slopes w|th s and sw aspect ellesmere island: vicinity of lake hazen ZQ.BA   F Sweet  3@ 1433504   =[ R 532 onagraceae #m   v6. 1959-07-08     K alt. 2000-2100'  zew lat. 81Â° 45' -82Â° 10' N., long. 68Â° 30'-72Â° 45' W.
{"catalogNumber": "1433504", "order": "Myrtales", "family": "Onagraceae", "scientificName": "Chamaenerion latifolium", "scientificNameAuthorship": "Sweet", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "532", "verbatimEventDate": "1959-07-08", "habitat": "dry gravel-sand terrace slopes with S and SW aspect", "occurrenceRemarks": "alt. 2000-2100'", "associatedTaxa": "", "country": "", "stateProvince": "Nunavut", "county": "Qikiqtaaluk", "municipality": "", "locality": "Ellesmere Island: vicinity of Lake Hazen", "decimalLatitude": "81.75", "decimalLongitude": "-68.5", "verbatimCoordinates": "lat. 81\u00c2\u00b0 45' -82\u00c2\u00b0 10' N., long. 68\u00c2\u00b0 30'-72\u00c2\u00b0 45' W.", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}