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": ""}
 7+v@ MICHX. 1458352@g#&     Juncaceae :L  ACUMINATUS iF +    gg OREGON AMERICAN BOTTOM. w^  J. C. NELSON M   cNp 1922-04-18      . junus   ^ TI Poales    W8$C UNITED STATES   Juncus acuminatus $     @ 4642
{"catalogNumber": "1458352", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus acuminatus", "scientificNameAuthorship": "Michx.", "genus": "Juncus", "subgenus": "", "specificEpithet": "acuminatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J. C. Nelson", "recordNumber": "4642", "verbatimEventDate": "1922-04-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Oregon", "county": "", "municipality": "", "locality": "American Bottom.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}