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": ""}
1519654 y$-z  ON RIVER BOTTOM R4   ; w  tetrasperma     Karong SALIX TETRASPERMA JS,     1H 3813  1067    Malpighiales w0 ?    o Roxb.  Q senapati  Manipur    salicaceae r     Salix s      
{"catalogNumber": "1519654", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix tetrasperma", "scientificNameAuthorship": "Roxb.", "genus": "Salix", "subgenus": "", "specificEpithet": "tetrasperma", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "3813", "verbatimEventDate": "", "habitat": "On river bottom", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Manipur", "county": "Senapati", "municipality": "", "locality": "Karong", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1067", "maximumElevationInMeters": ""}