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 ALGER   -;2E R.C. Van Etten  ep rosaceae l. f. .        DC Prunu  s.n. 7-/     K  pensylvanica     X + 195N3-06-03  ?6!) prunus pensylvanica  1349091  ]     r# 46.355247 Michigan ;H  -86.480282   ,(k 
{"catalogNumber": "1349091", "order": "", "family": "Rosaceae", "scientificName": "Prunus pensylvanica", "scientificNameAuthorship": "L. f.", "genus": "Prunus", "subgenus": "", "specificEpithet": "pensylvanica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.C. Van Etten", "recordNumber": "s.n.", "verbatimEventDate": "1953-06-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "", "decimalLatitude": "46.355247", "decimalLongitude": "-86.480282", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}