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": ""}
  f c.h. mull.  1939-08-21 ]6qS   FAGACEAE fMZ4?   nUw quercus  j   VERDE   y<Q 1264693   @ Quercusverde   contact um herbarium ni  mexico v   2942 TD         fagales hm    /l nuevo leon  CORNELIU5 H. MULLER ccqrr  
{"catalogNumber": "1264693", "order": "Fagales", "family": "Fagaceae", "scientificName": "Quercus verde", "scientificNameAuthorship": "C.H. Mull.", "genus": "Quercus", "subgenus": "", "specificEpithet": "verde", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cornelius H. Muller", "recordNumber": "2942", "verbatimEventDate": "1939-08-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}