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": ""}
  rolfei ,     1953-09-01      -U@nf 7206  ,j ;o INDIA  hjD,8 1829  9/ 1502647 rubus Z@     /+ Meghalaya  w;E rosaceae   .u  Mawphlang     xh Rosales    
{"catalogNumber": "1502647", "order": "Rosales", "family": "Rosaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Rubus", "subgenus": "", "specificEpithet": "rolfei", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7206", "verbatimEventDate": "1953-09-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "", "municipality": "", "locality": "Mawphlang", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1829", "maximumElevationInMeters": ""}