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": ""}
    b. c. te mpleton O*       f r 1557689  [ 1970-08-19  Rosaceae N+   6k ZV NO DATA PROVIDED ON LABEL OF CATALOG NO: 1557689   v%ZEi prunus pumila   p S.N.  PRUNUS Zz        Wa+ PUMILA   H8 l.
{"catalogNumber": "1557689", "order": "", "family": "Rosaceae", "scientificName": "Prunus pumila", "scientificNameAuthorship": "L.", "genus": "Prunus", "subgenus": "", "specificEpithet": "pumila", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "B. C. Templeton", "recordNumber": "s.n.", "verbatimEventDate": "1970-08-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "no data provided on label of catalog no: 1557689", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}