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": ""}
 B 1219 POLYSPERMA 8     Cherrapunjee JB   C EAST KHASI HILLS    [kL Meghalaya bruinsmia polysperma BD  5410       <`SM  India      Wt18 ericales  QsUU 1952-04-22 thakur rup chand ktjX   kFj (c. b. clarke) steenis  1515605 Xyr.     Styracaceae E.EwO 
{"catalogNumber": "1515605", "order": "Ericales", "family": "Styracaceae", "scientificName": "Bruinsmia polysperma", "scientificNameAuthorship": "(C. B. Clarke) Steenis", "genus": "", "subgenus": "", "specificEpithet": "polysperma", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "5410", "verbatimEventDate": "1952-04-22", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Cherrapunjee", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}