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": ""}
  > TENUIFOLIA 1918-06-13 z  alnus incana subsp. tenuifolia &$fr  (Nutt.) Breitung A   1435931 r    contact um herbarium Jx   xkv Betulaceae  United States Rh     a8%] subsp.   8)Sh fagales  s.n. ]-v  clear4 creek as(r      ]=n,Vu colorad0   & Joseph R. Curchill  incana -c 
{"catalogNumber": "1435931", "order": "Fagales", "family": "Betulaceae", "scientificName": "Alnus incana subsp. tenuifolia", "scientificNameAuthorship": "(Nutt.) Breitung", "genus": "", "subgenus": "", "specificEpithet": "incana", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "tenuifolia", "identifiedBy": "", "recordedBy": "Joseph R. Churchill", "recordNumber": "s.n.", "verbatimEventDate": "1918-06-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Colorado", "county": "Clear Creek", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}