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": ""}
 potomac banks, near washington o. c C     Maryland o4r Virginia #?    poa cuspidata XqZ  1421459 rb+T7    Dop united states   poa f Sq     cuspidata A*    %% 1889-0z4-21    jAI oales      PT  Poaceae
{"catalogNumber": "1421459", "order": "Poales", "family": "Poaceae", "scientificName": "Poa cuspidata", "scientificNameAuthorship": "", "genus": "Poa", "subgenus": "", "specificEpithet": "cuspidata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1889-04-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Maryland or Virginia", "county": "", "municipality": "", "locality": "Potomac banks, near Washington D. C", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}