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": ""}
MARSHALL 1Bo  42.122778 69RLF   x "leaves green beneath" UNITED STATES z     NC5 NIGRA EDWARD G. VOSS ^N-U~  1318168 [c    -86.361204 4n0C    6437 AB  BERRIEN .T    a|jb: Salix nigra  ^w7+3 salicaceae   s(m/| Salix  + ZkB 1958-06-11  Ll#F benton tp., ca. 1 mi. w of millburg.   Zk) MICHIGAN  !<;B malpighiales    
{"catalogNumber": "1318168", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "6437", "verbatimEventDate": "1958-06-11", "habitat": "", "occurrenceRemarks": "\"leaves green beneath\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Berrien", "municipality": "", "locality": "Benton Tp., ca. 1 mi. W of Millburg.", "decimalLatitude": "42.122778", "decimalLongitude": "-86.361204", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}