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": ""}
  Q  m. p. widrlechner   = C4LIFORNIA  Tc parviflorus  731 JF  Contact UM Herbarium 4#+  Mary F. Spencer _C$   RUBUS xr3G   P.=N  Nutt.   ]d rosales 1921-06 _%)v   +<r Rubus parviflorus      riverside Ls     3Q ROSACEAE   + UNITED STATES  1461734 RcHl 
{"catalogNumber": "1461734", "order": "Rosales", "family": "Rosaceae", "scientificName": "Rubus parviflorus", "scientificNameAuthorship": "Nutt.", "genus": "Rubus", "subgenus": "", "specificEpithet": "parviflorus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "M. P. Widrlechner", "recordedBy": "Mary F. Spencer", "recordNumber": "1731", "verbatimEventDate": "1921-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "California", "county": "Riverside", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}