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": ""}
      i^t PRUNUS PENSYLVANICA             t4 -89.533254  6204 Gnlw    1958-05-29 rbfa   CA. 1.5 MI. E. OF SILVER CREEK. LAKE SUPERIOR. y_` t   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Prunus pensylvanica", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "6204", "verbatimEventDate": "1958-05-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "ca. 1.5 mi. E. of Silver Creek. Lake Superior.", "decimalLatitude": "", "decimalLongitude": "-89.533254", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}