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": ""}
(l.) roth dO;   71 1895-09-28 miller school SE_n1  purpurea oE   r x 1460942  _,$sx CONVOLVULACEAE   Albemarle  J   xC8 Virginia   IPOMOEA zo1IG  Solanales y            s.n. a@ ,  chas. k. dodge g  
{"catalogNumber": "1460942", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "", "scientificNameAuthorship": "(L.) Roth", "genus": "Ipomoea", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Chas. K. Dodge", "recordNumber": "s.n.", "verbatimEventDate": "1895-09-28", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Virginia", "county": "Albemarle", "municipality": "", "locality": "Miller School", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}