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": ""}
8r [ ROSA   L. =em   1949-08-04 O    /)&$5 Meghalaya  rosaceae zaE  1502458 HCd  eaOst khasi hills `^    ROSALES (  walter n. koelz aDUoz   IN THICKET AND ON BOULDERS Qx   mya INDIA   laitlynkot [laitlyngk0t]E Si M    Yh55  ROSA  +:m  1829  
{"catalogNumber": "1502458", "order": "Rosales", "family": "Rosaceae", "scientificName": "Rosa", "scientificNameAuthorship": "L.", "genus": "Rosa", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "1949-08-04", "habitat": "In thicket and on boulders", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Laitlynkot [Laitlyngkot]", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1829", "maximumElevationInMeters": ""}