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": ""}
Quercus 4b nJ     FAGALES g     sinaloa ZJ   d tuberculata  DENNIS E. BREEDLOVE @mKS-   YB]DR 1264628  FAGACEAE i     MEXICO hz     Quercus tuberculata J[x  1971-03-06 bgf[  19170 N    ON /g liebm.
{"catalogNumber": "1264628", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus tuberculata", "scientificNameAuthorship": "Liebm.", "genus": "Quercus", "subgenus": "", "specificEpithet": "tuberculata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Dennis E. Breedlove", "recordNumber": "19170", "verbatimEventDate": "1971-03-06", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Sinaloa", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}