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": ""}
   YR FABACEAE   <=le$ 16657  P+= l Rogers McVaugh   Vachellia schaffneri oXy2  mexico  uy4  fabales 0   SCHAFFNERI y    1958-08-08 W*^  1149589 ]0d|   Ma (S. WATSON) SEIGLER & EBINGER   EL MAGUEY; 9 MI E OF AGUASCALIENTES, HWY TO OJUELOS f6; o     4a 21.8698    aguascalientes &  
{"catalogNumber": "1149589", "order": "Fabales", "family": "Fabaceae", "scientificName": "Vachellia schaffneri", "scientificNameAuthorship": "(S. Watson) Seigler & Ebinger", "genus": "", "subgenus": "", "specificEpithet": "schaffneri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Rogers McVaugh", "recordNumber": "16657", "verbatimEventDate": "1958-08-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Aguascalientes", "county": "", "municipality": "", "locality": "El Maguey; 9 mi E of Aguascalientes, hwy to Ojuelos", "decimalLatitude": "21.8698", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}