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": ""}
   ?$  1953-09-20  cenchrus Sc   ]=h A japan poales T    S.N. a  TSUGUO TATEOKA (   CHÅ«BU -     iJNd 1704760    misima H8-7   %  D purpurascens  0Mtlr POACEAE   w c THUNB. CENCHRUS PURPURASCENS 3MwW4   Shizuoka ^+V  
{"catalogNumber": "1704760", "order": "Poales", "family": "Poaceae", "scientificName": "Cenchrus purpurascens", "scientificNameAuthorship": "Thunb.", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "purpurascens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Tsuguo Tateoka", "recordNumber": "s.n.", "verbatimEventDate": "1953-09-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Japan", "stateProvince": "Ch\u00c5\u00abbu", "county": "Shizuoka", "municipality": "", "locality": "Misima", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}