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": ""}
        4:xFY -15.3       u Esenbeckia decidua  gt MELLO-SILVA R., M.M. ARBO & J. VICENTE NUNES   ,/U- MINAS GERAIS  Q5 Esenbeckia BR-122, 8 KM N DE MATO VERDEL            
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Esenbeckia decidua", "scientificNameAuthorship": "", "genus": "Esenbeckia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mello-Silva R., M.M. Arbo & J. Vicente Nunes", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Minas Gerais", "county": "", "municipality": "", "locality": "BR-122, 8 km N de Mato Verde", "decimalLatitude": "-15.3", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}