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": ""}
michigan +K  1910-07-01 S1l      L Fagales              J~ Britton  g [scales of aments pubescent] Van Buren AWI+  United States  YW    L.H. Pennington `Y#   5 0X/ betula alleghaniensis ALLEGHANIENSIS E  
{"catalogNumber": "", "order": "Fagales", "family": "", "scientificName": "Betula alleghaniensis", "scientificNameAuthorship": "Britton", "genus": "", "subgenus": "", "specificEpithet": "alleghaniensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.H. Pennington", "recordNumber": "", "verbatimEventDate": "1910-07-01", "habitat": "", "occurrenceRemarks": "[Scales of aments pubescent]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Van Buren", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}