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": ""}
    6 x 1951-05-15   X<; Premna latifolia var. mucronata  lamiaceae 7   IND3IA LpZf   28050 5nT*  610 FW i`  1520574 P %+   .5Nn latifolia Laikul E    /_C Cachar (ROXB.) C.B.CLARKE w5I   S-T Lamiales    G8FT Wal7er N. Koelz  qb i MUCRONATA  var. =T    
{"catalogNumber": "1520574", "order": "Lamiales", "family": "Lamiaceae", "scientificName": "Premna latifolia var. mucronata", "scientificNameAuthorship": "(Roxb.) C.B.Clarke", "genus": "", "subgenus": "", "specificEpithet": "latifolia", "verbatimTaxonRank": "var.", "infraspecificEpithet": "mucronata", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "28050", "verbatimEventDate": "1951-05-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "Cachar", "municipality": "", "locality": "Laikul", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "610", "maximumElevationInMeters": ""}