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": ""}
 assam ~Z    .S MALPIGHIALES       HEDGE e83   uh Xylosma 1507839 u#   PALASBARI  1wo   SALICACEA3  E]   24166 =<u   Za Walter N. Koelz XYLOSMA Ov ^w        
{"catalogNumber": "1507839", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Xylosma", "scientificNameAuthorship": "", "genus": "Xylosma", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "24166", "verbatimEventDate": "", "habitat": "Hedge", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Assam", "county": "", "municipality": "", "locality": "Palasbari", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}