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": ""}
1897-04-27 6#  Washington, D.C. H[     WASHINGTON, D. C. L@LpY     _c^B MUHL.  %+R s.n.   0jV5e viola tenlla   Malpighiales C   fFE viola  oQ( A.J. Piyeters violaceae ]e   GRPM 42761 lS^a?       1507502 DxO   , TENELLA  tQ  4 UNITED STATES
{"catalogNumber": "1507502", "order": "Malpighiales", "family": "Violaceae", "scientificName": "Viola tenella", "scientificNameAuthorship": "Muhl.", "genus": "Viola", "subgenus": "", "specificEpithet": "tenella", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A.J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1897-04-27", "habitat": "", "occurrenceRemarks": "GRPM 42761", "associatedTaxa": "", "country": "United States", "stateProvince": "Washington, D.C.", "county": "", "municipality": "", "locality": "Washington, D. C.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}