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": ""}
      blackstone ranch, gravelly stream-bed of independence creek, 20 miles south of sheffield  5   307 `        R 1540685 (Cav.) Sweet .j     linearis +(]AX     LAMIALES djyi<   UNITED STATES X`.Sn  GRADY L. WEBSTER 0X  BIGNONIACEAE : 
{"catalogNumber": "1540685", "order": "Lamiales", "family": "Bignoniaceae", "scientificName": "", "scientificNameAuthorship": "(Cav.) Sweet", "genus": "", "subgenus": "", "specificEpithet": "linearis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Grady L. Webster", "recordNumber": "307", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Blackstone Ranch, gravelly stream-bed of Independence Creek, 20 miles south of Sheffield", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}