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": ""}
     N gentry, fox    1952-08-16 x; G  12006 $v    GUERRERO >8 Y   [ Baill.  RO*lK Mexico  Iguala de la Independencia lIc   1540472 R  LAMIALES @.  ASTIANTHUS !u  ASTIANTHUS VIMINLIS K   viminalis @Nr   Canyon Igala, about 15 miles NE of Iguala E    b BIGNONIACEAE  
{"catalogNumber": "1540472", "order": "Lamiales", "family": "Bignoniaceae", "scientificName": "Astianthus viminalis", "scientificNameAuthorship": "Baill.", "genus": "Astianthus", "subgenus": "", "specificEpithet": "viminalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Gentry, Fox", "recordNumber": "12006", "verbatimEventDate": "1952-08-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guerrero", "county": "Iguala de la Independencia", "municipality": "", "locality": "Canyon Iguala, about 15 miles NE of Iguala", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}