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": ""}
      R. E. S. Tanner jV       gayanus  6VD  poale5   In valley on heavy black fissuring clay .dK   1957-06-13 L]W8e    D sK POACEAE ANDROPOGON GAYANUS Y     Tanzania H|      
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Andropogon gayanus", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "gayanus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. E. S. Tanner", "recordNumber": "", "verbatimEventDate": "1957-06-13", "habitat": "In valley on heavy black fissuring clay", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Tanzania", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}