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 c,m@   i@bc N MARGIN OF MUSKEG0N RIVER. SALI NIGRA !C     MICHIGAN  4# nigra  f.v. brunett !x7a=  Salix B?4   #`D 1318173  wD SALICACEAE      -85.19757 B  679 5 wb.    united states <m   =s Osceola   43.936655 z=      m malpighiales
{"catalogNumber": "1318173", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F.V. Brunett", "recordNumber": "679", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Osceola", "municipality": "", "locality": "N margin of Muskegon River.", "decimalLatitude": "43.936655", "decimalLongitude": "-85.19757", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}