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": ""}
   BETULA Lq6Q  CONTACT UM HERBARIUM 4E,    u0 michigan bnzie 5  pendula ^+ $  united states Z     L BETULA PENDULA      K Cd fagales  BRIAN T. HAZLET7 Ww         betulaceae    1985-08-23 PiAr   EH 3871 
{"catalogNumber": "", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula pendula", "scientificNameAuthorship": "", "genus": "Betula", "subgenus": "", "specificEpithet": "pendula", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Brian T. Hazlett", "recordNumber": "3871", "verbatimEventDate": "1985-08-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Benzie", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}