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": ""}
   `)7nU 1644159   e@ CACTACEAE shore of arkansas river, near pakdale Pgl.j   1281 #  1925-07-02       @T.a Cylindropuntia  Fremont 1>v:    NITED STATES dd   Vl+ (haw.) f.m. knuth   E. W. Erlanson <    CYLINDR0PUNT|A IMBRICATA m!X:    >tbQ imbricata 
{"catalogNumber": "1644159", "order": "", "family": "Cactaceae", "scientificName": "Cylindropuntia imbricata", "scientificNameAuthorship": "(Haw.) F.M. Knuth", "genus": "Cylindropuntia", "subgenus": "", "specificEpithet": "imbricata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "E. W. Erlanson", "recordNumber": "1281", "verbatimEventDate": "1925-07-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Fremont", "municipality": "", "locality": "Shore of Arkansas River, near Parkdale", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}