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": ""}
M4ry C. Helms  4     Pitt L   lxL 1540572  6 WI campsis radicans    P (L.) Seem. ex Bureau   Zj2u CAMPSIS |amiales  VSu]   < ~] radicans   I~s7j north carol^ina        V~@]M united states   I <  1967-08-15  
{"catalogNumber": "1540572", "order": "Lamiales", "family": "", "scientificName": "Campsis radicans", "scientificNameAuthorship": "(L.) Seem. ex Bureau", "genus": "Campsis", "subgenus": "", "specificEpithet": "radicans", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary C. Helms", "recordNumber": "", "verbatimEventDate": "1967-08-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "North Carolina", "county": "Pitt", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}