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": ""}
   xR 1954-04-15  7OW malpighiales    1519644 #g (  Salix psilostigma ,hABD  mawphlang *cn@   ZM> SALICACEAE  FVx3 in open salix c/=#^    2D  Meghalaya 1829 Lz+   PSILOSTIGMA 1>   7534 w`Y     India xF   thakur rup chand A  EASyT KHASI HILLS [  andersson #/, 
{"catalogNumber": "1519644", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix psilostigma", "scientificNameAuthorship": "Andersson", "genus": "Salix", "subgenus": "", "specificEpithet": "psilostigma", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Thakur Rup Chand", "recordNumber": "7534", "verbatimEventDate": "1954-04-15", "habitat": "In open", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Mawphlang", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1829", "maximumElevationInMeters": ""}