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": ""}
MEXICO Rc  Robert Merill KingWZ    C 16.3394    SENNA | H   i SENNA ATOMARIA        5:X* V.E. RUDD    fabales .B   DV ATOMAAIA     grazed areas, vegetation mainly of thorny leguminous shrubs and cacti riMQn  
{"catalogNumber": "", "order": "Fabales", "family": "", "scientificName": "Senna atomaria", "scientificNameAuthorship": "", "genus": "Senna", "subgenus": "", "specificEpithet": "atomaria", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "V.E. Rudd", "recordedBy": "Robert Merill King", "recordNumber": "", "verbatimEventDate": "", "habitat": "Grazed areas, vegetation mainly of thorny leguminous shrubs and cacti", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "16.3394", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}