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 +-RN?   Michigan  &aLD     4:^ Dry gravelly peninsula  h  `p Salicaceae  Ann Arbor, South Pond, south of railroad tracks  G    FEe 1316871 humilis (?S)p  -83.68764 %    6v ALPIGHIALES SALIX HUMILIS ])$  1998-05-14 ]     P Salix    "With vaccinium pallidum, Vicia caroliniana, Car3x pensylvanica. Small shrub to 3ft." x   07f united states  S8!E 571 Beverly S. Walters iCz R   v 42.26897
{"catalogNumber": "1316871", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix humilis", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "humilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Beverly S. Walters", "recordNumber": "571", "verbatimEventDate": "1998-05-14", "habitat": "Dry gravelly peninsula", "occurrenceRemarks": "\"With vaccinium pallidum, Vicia caroliniana, Carex pensylvanica. Small shrub to 3ft.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Ann Arbor, South Pond, south of railroad tracks", "decimalLatitude": "42.26897", "decimalLongitude": "-83.68764", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}