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": ""}
 1500666 b M9    EAST) KHASI H|LLS [5x&[   india R u g   k:(  Persea  microcarpa []    Mh thakur rup chand    5@y laurales    .B:3 914  Meghalaya a   8M`o Barapani  1646 1kSfG    pesea microcarpa _W    l[? 1949-06-05
{"catalogNumber": "1500666", "order": "Laurales", "family": "", "scientificName": "Persea microcarpa", "scientificNameAuthorship": "", "genus": "Persea", "subgenus": "", "specificEpithet": "microcarpa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "1646", "verbatimEventDate": "1949-06-05", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Barapani", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "914", "maximumElevationInMeters": ""}