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": ""}
    ` PANICUM POLYCAULON  8FY CONTACT UM HERBARUM  E. L. Ekman Oxo   H4dO 12969 Poales 1  1921-06-30 !       Panicum IF|    O  CUBA   ]gO 1127312   Q POACEAE    NASH l2n6     7m e. l. ekman
{"catalogNumber": "1127312", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum polycaulon", "scientificNameAuthorship": "Nash", "genus": "Panicum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "E. L. Ekman", "recordedBy": "E. L. Ekman", "recordNumber": "12969", "verbatimEventDate": "1921-06-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Cuba", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}