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": ""}
  @   Poaceae EWING ELLIOTT g+   MITAKA-MACHI X  IN GRASSY FIELD AND WASTE LAND, SEA LEVEL  i    V_AR. H     123 O,Qj   (Retz.) Benth. ex Pilg.    koenigii +T     ^ imperata cylindrica var. koenigii  qSw~c 1712090    TOKYO IV?     4*m   1946-10-29
{"catalogNumber": "1712090", "order": "", "family": "Poaceae", "scientificName": "Imperata cylindrica var. koenigii", "scientificNameAuthorship": "(Retz.) Benth. ex Pilg.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "koenigii", "identifiedBy": "", "recordedBy": "Ewing Elliott", "recordNumber": "123", "verbatimEventDate": "1946-10-29", "habitat": "in grassy field and waste land, sea level", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Tokyo", "county": "Mitaka-machi", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}