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": ""}
NIGRA 6r*%  -83.806645 EA    X 1932-05-29  Nt(u  SALICACEAE  / Saginaw Eorest, Ann Arbor. MALPIGHIALES V?|0   -m  s.n. EDWIN B. MAINS J4D    Carleton R. Ball 7-   UNITED STATES H  Plant 25 /Z+  MICHIGAN hU   O#@Gd washtenaw  UX=  1318183     salix %~L>  Marshall l  Salix nigra |1PYG    rQ 42.276018
{"catalogNumber": "1318183", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Carleton R. Ball", "recordedBy": "Edwin B. Mains", "recordNumber": "s.n.", "verbatimEventDate": "1932-05-29", "habitat": "", "occurrenceRemarks": "Plant 25", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Saginaw Forest, Ann Arbor.", "decimalLatitude": "42.276018", "decimalLongitude": "-83.806645", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}