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": ""}
MILLER      =>?P SEC. 17, T18N, R23W  sylvatica 0|ir  arkansas x(    EUPHORBIACEAE  Y6   Z  Malpighiales         1993-05-24 *   Azf Sandy soil  l united sates  2m. STILLINGIA SYLVATICA  1645567 6R   
{"catalogNumber": "1645567", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Stillingia sylvatica", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "sylvatica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1993-05-24", "habitat": "Sandy soil", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Miller", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "Sec. 17, T18N, R23W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}