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": ""}
s.n. SZ<   Malpighiales 1h  45.993018 Vi %D   m4 xD ROBERT E. PRESTON SM. /Ad    VIOLACEAE xl    h< MICHIGAN    dr ANTON A. REZNICEK  Urr8 Viola       1514881 ^   & ^V VIOLA ADUNCA  Mg] United States  g[w0 horse race rapids, 13 km sse of crystall falls.  +2zL 2008-05-21 corollas blue. ~I 
{"catalogNumber": "1514881", "order": "Malpighiales", "family": "Violaceae", "scientificName": "Viola adunca", "scientificNameAuthorship": "Sm.", "genus": "Viola", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Robert E. Preston", "recordNumber": "s.n.", "verbatimEventDate": "2008-05-21", "habitat": "", "occurrenceRemarks": "Corollas blue.", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Horse Race Rapids, 13 km SSE of Crystall Falls.", "decimalLatitude": "45.993018", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}