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": ""}
 6?s 1928-07   ez 4848  not present  Z    Agrostis Fk+         var. M|J[  AGROSTIS CLAVATA VAR. NUKABO m   POACEAE Ym[z]    SOUTH KOREA T     gx 33â°24'n, 126â°34'e  V JEJU  9E cm Cheju-Do (Quelpaert Island)
{"catalogNumber": "", "order": "", "family": "Poaceae", "scientificName": "Agrostis clavata var. nukabo", "scientificNameAuthorship": "", "genus": "Agrostis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "not present", "recordNumber": "4848", "verbatimEventDate": "1928-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "South Korea", "stateProvince": "Jeju", "county": "", "municipality": "", "locality": "Cheju-Do (Quelpaert Island)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "33\u00c2\u00b024'N, 126\u00c2\u00b034'E", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}