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": ""}
Cenchru5 purpurascens ~~   R poaceae     1704772     d W guangdong    l~! CENCHRUS    21723      [ south china   ABUNDANT; DRY, MEADOW, RICE TERRACE; 15 IN. HT; FL. REDDISH PURPLE  3P       d /aS Thunb.  dAm 1932-05-08 China >[ 
{"catalogNumber": "1704772", "order": "", "family": "Poaceae", "scientificName": "Cenchrus purpurascens", "scientificNameAuthorship": "Thunb.", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "21723", "verbatimEventDate": "1932-05-08", "habitat": "Abundant; dry, meadow, rice terrace; 15 in. ht; fl. reddish purple", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "South China", "county": "Guangdong", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}