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": ""}
 &_k Vachellia sphaerocephala   1149616      5~om* llera  VACHELLoIA : $SG    23.335 hZ   v bc  veintiuno de marzo; 1.8 mi n of turn off to llera on hwy 85 jus s of where tropico of cancer   MEXICO `?t@    mSg 1966-06-10 D.H. Janzen fm  -99.0032 `5pC     TAMAULIPAS 4   FABALES <   &,F   sphaerocephala 505 NjZLu 
{"catalogNumber": "1149616", "order": "Fabales", "family": "", "scientificName": "Vachellia sphaerocephala", "scientificNameAuthorship": "", "genus": "Vachellia", "subgenus": "", "specificEpithet": "sphaerocephala", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "D.H. Janzen", "recordNumber": "505", "verbatimEventDate": "1966-06-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Tamaulipas", "county": "Llera", "municipality": "", "locality": "Veintiuno de Marzo; 1.8 mi N of turn off to Llera on hwy 85 jus S of where Tropico of Cancer", "decimalLatitude": "23.335", "decimalLongitude": "-99.0032", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}