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": ""}
S.N. W   a Wooded sand ridge.    <^ 43.587276  ! IRA W. BU7TERFIELD  1962-05-21 B    F9Js Michigan         jahr site, wisner twp. H   v^U; DIOSCOREA  w3q8 -83.653525     villosa S3o;    
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Dioscorea", "subgenus": "", "specificEpithet": "villosa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ira W. Butterfield", "recordNumber": "s.n.", "verbatimEventDate": "1962-05-21", "habitat": "Wooded sand ridge.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Jahr Site, Wisner Twp.", "decimalLatitude": "43.587276", "decimalLongitude": "-83.653525", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}