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": ""}
    @b Zacateca  _  LAMIACEAE   6 1973-10-21     1277990 TlI   7 Salvia    S Salvia MEXICO AOB?    Lamiales b7     5 l. u=2 CONTACT UM HERBARIUM   B; 969  t> jerzy rzedowski & rogers mcvaugh
{"catalogNumber": "1277990", "order": "Lamiales", "family": "Lamiaceae", "scientificName": "Salvia", "scientificNameAuthorship": "L.", "genus": "Salvia", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Jerzy Rzedowski & Rogers McVaugh", "recordNumber": "969", "verbatimEventDate": "1973-10-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Zacatecas", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}