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": ""}
   s.n.  tL   JACKSON ^ <UL    a Britton  b United States  ]# 1353620     Samuel H. Camp & Donna R. Camp Dv~    1893-07-31 ,TxMM   Dodge's tamaracks .l9s0   RO:7 MICHIGAN    betulaceae D   
{"catalogNumber": "1353620", "order": "", "family": "Betulaceae", "scientificName": "", "scientificNameAuthorship": "Britton", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Samuel H. Camp & Donna R. Camp", "recordNumber": "s.n.", "verbatimEventDate": "1893-07-31", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Jackson", "municipality": "", "locality": "Dodge's tamaracks", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}