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": ""}
rhynchospora rubra &x    china #w9 ^  20298 p!  1932-08-01 (     sO& KWAI LENG, TING WOO SHA, KAO-YAO 5DISTRICT RUBRA #4^    jpZ guangdong  f S. Y. LAU       >xNA  Cyperceae   ( DOMIN      jk rhynchospora   
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Rhynchospora rubra", "scientificNameAuthorship": "Domin", "genus": "Rhynchospora", "subgenus": "", "specificEpithet": "rubra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. Y. Lau", "recordNumber": "20298", "verbatimEventDate": "1932-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "China", "stateProvince": "Guangdong", "county": "", "municipality": "", "locality": "Kwai Leng, Ting Woo Shan, Kao-Yao District", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}