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": ""}
 u South Korea  UY_Z POALES  jeju S0v      *@ Poaceae       CU lymus semicostatus O      1954-07-21 K|   c (NEES EX STEUD.) A. LÃ¶VE    Zo+Mv NO DATA    TAI HYUN CHUNG  KV4 1706466 
{"catalogNumber": "1706466", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Nees ex Steud.) A. L\u00c3\u00b6ve", "genus": "Elymus", "subgenus": "", "specificEpithet": "semicostatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Tai Hyun Chung", "recordNumber": "", "verbatimEventDate": "1954-07-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "South Korea", "stateProvince": "Jeju", "county": "no data", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}