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": ""}
b@etula RKw   <xe several shurbs seen, open wet sandy field.  T United States  gladwin FZ4    viE  1984-08-27  T pumila  qr JOHN V. FREUDENSTEIN    @C( Betulaceae   T`/4e betula pumila -84.236508 2  43.977884 # A~*     y Fz* ALONG M-61.     7cs_ 1349570   fagaes ]Xntt  
{"catalogNumber": "1349570", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula pumila", "scientificNameAuthorship": "", "genus": "Betula", "subgenus": "", "specificEpithet": "pumila", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John V. Freudenstein", "recordNumber": "", "verbatimEventDate": "1984-08-27", "habitat": "Several shurbs seen, open wet sandy field.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Gladwin", "municipality": "", "locality": "Along M-61.", "decimalLatitude": "43.977884", "decimalLongitude": "-84.236508", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}