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 Mexico  @x u% (Lam.) de Wit      M. GONZÃ¡LEZ e$E~y   ykn7x M. GonzÃ¡lez   y PV| El TroncÃ³n; Mezquital; El TroncÃ³n  CD. FABACEAE    leucaena leucocephala _       *kj 1170036    x>, 16155 
{"catalogNumber": "1170036", "order": "", "family": "Fabaceae", "scientificName": "Leucaena leucocephala", "scientificNameAuthorship": "(Lam.) de Wit", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "M. Gonz\u00c3\u00a1lez", "recordedBy": "M. Gonz\u00c3\u00a1lez", "recordNumber": "1155", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "El Tronc\u00c3\u00b3n; Mezquital; El Tronc\u00c3\u00b3n", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}