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": ""}
   2519 uM  cymbopogon WQ.  POACEAE W -E1          gpv] CYMBOPOGON NARDUS   Tsang Wai Tak & Wong Kam Chow  qSg$   NARDUS ec         (L.) Rendle 0c    M3,| 1926-10-07
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Cymbopogon nardus", "scientificNameAuthorship": "(L.) Rendle", "genus": "Cymbopogon", "subgenus": "", "specificEpithet": "nardus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Tsang Wai Tak & Wong Kam Chow", "recordNumber": "2519", "verbatimEventDate": "1926-10-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}