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": ""}
    BEAVER ISLAND. BACK OF LAKE MIH. SHORE. N COF GREEN'S BAY. VV      .6p frequent small tree on open sandy pine-juniper area.  _uFh united states   BURTON V. BARNES _[t]  Michigan oBT/   :daH salicaceae   -85.55722 l      r2 (f 1957-07-27 45.66472 O9G<:     
{"catalogNumber": "", "order": "", "family": "Salicaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Burton V. Barnes", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1957-07-27", "habitat": "Frequent small tree on open sandy pine-juniper area.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Beaver Island. Back of Lake Mich. Shore. N of Green's Bay.", "decimalLatitude": "45.66472", "decimalLongitude": "-85.55722", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}