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": ""}
POACEAE H15   purpurascens ysScI   2 Du  1449   ]KD- poales    A~ 1929-10-11 honshu !]     L Cenchrus  cenchrus purpurascens g    ^o** chiaki park, akita   TÅHOKU ,_b[do  in open te   /+kdk 1704746  japan :>    P.H. DORSETT, W.J. MORSE +D94   
{"catalogNumber": "1704746", "order": "Poales", "family": "Poaceae", "scientificName": "Cenchrus purpurascens", "scientificNameAuthorship": "", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "purpurascens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "P.H. Dorsett, W.J. Morse", "recordNumber": "1449", "verbatimEventDate": "1929-10-11", "habitat": "in open", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Japan", "stateProvince": "Honshu", "county": "T\u00c5\u008dhoku", "municipality": "", "locality": "Chiaki park, akita", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}