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": ""}
grass valley. Bo+  Rhamnaceae     $veJc |888-06       rosales f 83#     S.N. !sp    VF Frangula californica  Nevada 1f/   ] J.L. Coombs  => (ESCHSCH.) A. GRAY UNITED STATES ?JAl   #1= californica 1431889 (G    california NAz =  
{"catalogNumber": "1431889", "order": "Rosales", "family": "Rhamnaceae", "scientificName": "Frangula californica", "scientificNameAuthorship": "(Eschsch.) A. Gray", "genus": "", "subgenus": "", "specificEpithet": "californica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J.L. Coombs", "recordNumber": "s.n.", "verbatimEventDate": "1888-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "Nevada", "municipality": "", "locality": "Grass Valley.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}