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": ""}
    E4st Khai Hills HWU   PC 6F 1219   INDIA I_       L. :*S  Elaeocarpu #)u    2 thakur rup chand 5882 !!^&   W Oxalidales elaeocarpaceae *   1952-06-12 ~R4  1506787  4GA,   ELAEOCARPUS npp  cherrapunjee [rA  
{"catalogNumber": "1506787", "order": "Oxalidales", "family": "Elaeocarpaceae", "scientificName": "Elaeocarpus", "scientificNameAuthorship": "L.", "genus": "Elaeocarpus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "5882", "verbatimEventDate": "1952-06-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "", "county": "East Khasi Hills", "municipality": "", "locality": "Cherrapunjee", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}