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": ""}
Salix candida ru]    Salicaceae _JX    MALPIGHIALES z+y     m SALIX    Charles D. Richards &     Roadside about 4 miles east ofx Shingleton. m;    eYfv CANDIDA  zYX 4759  MICHIGAN tD2  1951-06-19 _   7WV) Alger  
{"catalogNumber": "", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix candida", "scientificNameAuthorship": "", "genus": "Salix", "subgenus": "", "specificEpithet": "candida", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Charles D. Richards", "recordNumber": "4759", "verbatimEventDate": "1951-06-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "Roadside about 4 miles east of Shingleton.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}