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   GUANAJUATO  s R    _G quercus 1471 +     pxX quercus omissa   omissa ge:U+    Richard M. Straw EzsV   O+qg@ FAGALES      c h((  fagaceae     264476 PR   CONTACT UM HERBARIUM FuBQu  1958-08-01 ?q % 
{"catalogNumber": "1264476", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus omissa", "scientificNameAuthorship": "", "genus": "Quercus", "subgenus": "", "specificEpithet": "omissa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Richard M. Straw", "recordNumber": "1471", "verbatimEventDate": "1958-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guanajuato", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}