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": ""}
  Y megacephalus  ds M.A. Curtis        Juncus  BN$     NORTH CAROLINA     12928 AU cu  poales ]p   .@P juncaceae  !f C. Ritchie Bell  contact um herbarium _PBuu   juncus megacephalus ZbSUq  UNITED STATES h   SB 1449159 
{"catalogNumber": "1449159", "order": "Poales", "family": "Juncaceae", "scientificName": "Juncus megacephalus", "scientificNameAuthorship": "M.A. Curtis", "genus": "Juncus", "subgenus": "", "specificEpithet": "megacephalus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. Ritchie Bell", "recordNumber": "12928", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}