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": ""}
          1645642 y:     iE D. J. Rogers  yiE DUVAL OR JIM WELLS     x M. B. CROFT    (MÃI¼ll. Arg.) I.M. Johnst.  d4xG  UNITED STATES 1w%W   qrt stillingia  tOJ V TRECULIANA 
{"catalogNumber": "1645642", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "(M\u00c3\u00bcll. Arg.) I.M. Johnst.", "genus": "Stillingia", "subgenus": "", "specificEpithet": "treculiana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "D. J. Rogers", "recordedBy": "M. B. Croft", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Duval or Jim Wells", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}