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": ""}
ewing elliott 1m8B   0AphL (Retz.) Benth. ex Pilg.   imperata cylindrica var. mkoenigii Vx      japan .Ag  1946-10-29 d^   Tokyo c       &HUH osawa, mitaka-machi, tokyo Poales z    1712090 ?N.   imperata O   c Y KOENIGII     R 123 
{"catalogNumber": "1712090", "order": "Poales", "family": "", "scientificName": "Imperata cylindrica var. koenigii", "scientificNameAuthorship": "(Retz.) Benth. ex Pilg.", "genus": "Imperata", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "koenigii", "identifiedBy": "", "recordedBy": "Ewing Elliott", "recordNumber": "123", "verbatimEventDate": "1946-10-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Japan", "stateProvince": "Tokyo", "county": "", "municipality": "", "locality": "Osawa, Mitaka-machi, Tokyo", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}