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": ""}
   < C. M. ROGE~RS     CONVOLVULACEAE  UNITED STATES H      6NJc las animas    -H torr. 1947-07-02 B5WD   Colorado  em  4506 w~)0k   | south of slope of Tecolote Mesa near [illegible]ray      +L ) 1460757  e0 4 leptophylla   ipomo3a leptobhylla ha  
{"catalogNumber": "1460757", "order": "", "family": "Convolvulaceae", "scientificName": "Ipomoea leptophylla", "scientificNameAuthorship": "Torr.", "genus": "", "subgenus": "", "specificEpithet": "leptophylla", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "C. M. Rogers", "recordNumber": "4506", "verbatimEventDate": "1947-07-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Las Animas", "municipality": "", "locality": "south of slope of Tecolote Mesa near [illegible]ray", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}