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": ""}
1438780 KRO.:    Z CARYOPHYLLALES  ^^s persicaria  bicornis v=x 6   Si=Je 11923  m Contact UM HerbNarium     u(?F Polygonaceae  =S2 (RAF.) NIEUWL.         y% persicaria bicornis  T united states  E ATASCOSA   Texas ,U  Cyrus L. Lundell n+ G 
{"catalogNumber": "1438780", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Persicaria bicornis", "scientificNameAuthorship": "(Raf.) Nieuwl.", "genus": "Persicaria", "subgenus": "", "specificEpithet": "bicornis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cyrus L. Lundell", "recordNumber": "11923", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Atascosa", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}