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": ""}
betulaceae 6    ! FAGALES     B Betula    emmet [   betula pumila var. gla ndulifera YQ!    4 UNITED STATES    H%lj2 -84.805565 road through cedar swamp. ]8C-T    x%qW 45.551587 1931-07-29 $eM.   ^8/z? REGEL    . pumila  &n + JOHN H. EHLERS  var. fGi- 
{"catalogNumber": "", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula pumila var. glandulifera", "scientificNameAuthorship": "Regel", "genus": "Betula", "subgenus": "", "specificEpithet": "pumila", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "", "verbatimEventDate": "1931-07-29", "habitat": "Road through cedar swamp.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Emmet", "municipality": "", "locality": "", "decimalLatitude": "45.551587", "decimalLongitude": "-84.805565", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}