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": ""}
 1927-06-07 W^i       prain & burkill  bL?   aek na gerger between djoema tombak & taratak, tanah djawa ?!   2 sheets  x9/S                
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Prain & Burkill", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1927-06-07", "habitat": "", "occurrenceRemarks": "2 sheets", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Aek na Gerger between Djoema Tombak & Taratak, Tanah Djawa", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}