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": ""}
    + United States Schleicher B4    Poaceae    po4les  !+A    DISAKISPERMA */</  (KUNTH) P.M. PETERSON & N.SNOW ho         DISAKISPERMA DUBIUM  X(y     52507 UDba    1946-10-07 -7o2  V. L. CORY   
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Disakisperma dubium", "scientificNameAuthorship": "(Kunth) P.M. Peterson & N.Snow", "genus": "Disakisperma", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "V. L. Cory", "recordNumber": "52507", "verbatimEventDate": "1946-10-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Schleicher", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}