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       ^O (S. Watson) Seigler & Ebinger  BT schaffneri   W 1149592   mexico f ->        rancho nuevo; 7 km al n de huehuetoca To  569 7    vachellia p0_    hV fabaes   
{"catalogNumber": "1149592", "order": "Fabales", "family": "", "scientificName": "", "scientificNameAuthorship": "(S. Watson) Seigler & Ebinger", "genus": "Vachellia", "subgenus": "", "specificEpithet": "schaffneri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "569", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Mexico", "county": "", "municipality": "", "locality": "Rancho Nuevo; 7 km al N de Huehuetoca", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}