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": ""}
    1966-06-19 j6NI     C!4 1414864   MCCORMICK r          %: $ ALBERT E. RADFORD  44809 #LE4    c 9g POALES   V CONTACT UM HERBARIUM poaceae V   D united states   gf ? subverticillata (Pers.) Alexeev #!jp 
{"catalogNumber": "1414864", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "(Pers.) Alexeev", "genus": "", "subgenus": "", "specificEpithet": "subverticillata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Albert E. Radford", "recordNumber": "44809", "verbatimEventDate": "1966-06-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "McCormick", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}