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": ""}
 dark caã±on, rcky aroyo road, 45 miles southwest of carlsbad :T    CARL O. GRASSL _EU0U  A. GRAY  b&    united states u*@Kn      fWNS@ EDDY  1930-07-19  u   IEu 1460740    < lindheimeri    %H[ ipomoea lindheimeri     [n 1951  B&C# CONVOLVULACEAE    |I solanales
{"catalogNumber": "1460740", "order": "Solanales", "family": "Convolvulaceae", "scientificName": "Ipomoea lindheimeri", "scientificNameAuthorship": "A. Gray", "genus": "", "subgenus": "", "specificEpithet": "lindheimeri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "", "verbatimEventDate": "1930-07-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Eddy", "municipality": "", "locality": "Dark Ca\u00c3\u00b1on, Rocky Aroyo Road, 45 miles southwest of Carlsbad", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1951", "maximumElevationInMeters": ""}