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": ""}
   :SA SCANDENS 1947-08-19 !uW  Colorado !J   T ? LAS ANIMAS  scandens E=DxH     C fallopia scandens var. scandens  5358 f  c. marvin rogers b   var.       / caryophylales vnited states XT^a         &<z6 1453401
{"catalogNumber": "1453401", "order": "Caryophyllales", "family": "", "scientificName": "Fallopia scandens var. scandens", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "scandens", "verbatimTaxonRank": "var.", "infraspecificEpithet": "scandens", "identifiedBy": "", "recordedBy": "C. Marvin Rogers", "recordNumber": "5358", "verbatimEventDate": "1947-08-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Las Animas", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}