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": ""}
  W he CALAMOVILFA   &tf CONTACT UM HERBARIUM    JOHN W. THIERET  longifolia _   00S 8 nebrask<a poaceae D+r#b   4576 J1|    [zI1 poales     ;W HOWARD  h CALAMOVILFA LONGIFOLIA (hook.) scribn. 9#   3!UJ+ 1958-08-28  L 9Pg United States     1408887 C7   
{"catalogNumber": "1408887", "order": "Poales", "family": "Poaceae", "scientificName": "Calamovilfa longifolia", "scientificNameAuthorship": "(Hook.) Scribn.", "genus": "Calamovilfa", "subgenus": "", "specificEpithet": "longifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John W. Thieret", "recordNumber": "4576", "verbatimEventDate": "1958-08-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Nebraska", "county": "Howard", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}