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": ""}
   r 1916-05-07    583 Dw   D D MALPIGHIALES  Viola  GXZ    ;: volaceae  o7l  L harvey e. ballard, jr.   MICHIGAN  .!j   wI ; VIOLA SAGITTATA United States .r6t    e% Detroi Zoo sagittata _   oakland v )   ?# JOHNM. SUTTON    935Bi -83.14909
{"catalogNumber": "", "order": "Malpighiales", "family": "Violaceae", "scientificName": "Viola sagittata", "scientificNameAuthorship": "", "genus": "Viola", "subgenus": "", "specificEpithet": "sagittata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Harvey E. Ballard, Jr.", "recordedBy": "John M. Sutton", "recordNumber": "583", "verbatimEventDate": "1916-05-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Oakland", "municipality": "", "locality": "Detroit Zoo", "decimalLatitude": "", "decimalLongitude": "-83.14909", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}