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": ""}
8051 r  1948-04-17 <      a PENNVENIA   TREL. vU  Chihuahua W#m     Howard S. Gentry =zT   b0FN9 FAGACEAE     I(;,` Contact UM Herbarium   quercus (y[   x Mexico QUERCUS PENNIVENIA A   1260786 `jG   eGo 5 FAGALES 
{"catalogNumber": "1260786", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus pennivenia", "scientificNameAuthorship": "Trel.", "genus": "Quercus", "subgenus": "", "specificEpithet": "pennivenia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Howard S. Gentry", "recordNumber": "8051", "verbatimEventDate": "1948-04-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Chihuahua", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}