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": ""}
R.W. CRUDEN rP&.  3183 /  [       8>8 sonora echeandia 30      1940-08-04 n,J13     v K PINE LAND BURNED OVER    FLAVESCENS M)?xz    -108.938 ^rU70    
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Echeandia", "subgenus": "", "specificEpithet": "flavescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "R.W. Cruden", "recordedBy": "", "recordNumber": "3183", "verbatimEventDate": "1940-08-04", "habitat": "Pine land burned over", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Sonora", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-108.938", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}