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": ""}
   r5W s.n. ALLEGHANIENSIS  V7&%   c8.xF -84.159512     Ad Betula alleghaniensis  Michigan !  FAGALES UK     y&; Betula  )@c[W Saginaw  UNITED STATES l 8     RAYS WOODS. lC  1350604 t1#29   r:Dy<  43.532366  /m 1956-06-27 BETULACEAE u&v/T  britton LX   FREDERICK W. CASE, JR. 6 
{"catalogNumber": "1350604", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula alleghaniensis", "scientificNameAuthorship": "Britton", "genus": "Betula", "subgenus": "", "specificEpithet": "alleghaniensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Frederick W. Case, Jr.", "recordNumber": "s.n.", "verbatimEventDate": "1956-06-27", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Saginaw", "municipality": "", "locality": "Rays Woods.", "decimalLatitude": "43.532366", "decimalLongitude": "-84.159512", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}