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": ""}
 1668400 x     HR7 Poales s.n. q      ? Y.A (EHRH.) LEJ.    juncaceae xSX   U;v e. g. johnston   XL5 B 1923-06-21  4 Alaska  United States :    ALEUTIANS WEST Ew/   K4H MULTIFLORA luzula multiflora C g   Luzula  V=o   st. george island, gardzen cove ridge 5 
{"catalogNumber": "1668400", "order": "Poales", "family": "Juncaceae", "scientificName": "Luzula multiflora", "scientificNameAuthorship": "(Ehrh.) Lej.", "genus": "Luzula", "subgenus": "", "specificEpithet": "multiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E. G. Johnston", "recordNumber": "s.n.", "verbatimEventDate": "1923-06-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Alaska", "county": "Aleutians West", "municipality": "", "locality": "St. George Island, Garden Cove Ridge", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}