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 sartorii D 4u   Fagaceae &   V=au4 SARTORII     ROGERS MCVAUGH d4Ds=      1264385  `   X  Cornelius H. Muller  G-KJf fagales   w/U %i contact um herbarium 1949-05-07 ? d`       x 10429  
{"catalogNumber": "1264385", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus sartorii", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "sartorii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Cornelius H. Muller", "recordedBy": "Rogers McVaugh", "recordNumber": "10429", "verbatimEventDate": "1949-05-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}