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": ""}
  42.27528 dU&A     j Washtenaw    ~-Lr 1927-07-29  L. F. ? eM   ANN ARBOR; IN PRAEDIO SILVESTRI. [FORESTRY FARM] /  -83.73083 +f 5          pensylvanicus2    #q11Y Anton A.+ Rezni2cek  b= 1481938  
{"catalogNumber": "1481938", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "L. f.", "genus": "", "subgenus": "", "specificEpithet": "pensylvanicus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1927-07-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor; in Praedio Silvestri. [Forestry farm]", "decimalLatitude": "42.27528", "decimalLongitude": "-83.73083", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}