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": ""}
    46.917412  L70+       Betula   By Otter Lake.      x Fagales   ]m 1154   H Michigan    01##O -88.585273   HOUGHTON -   Betula papyrifera 1I    
{"catalogNumber": "", "order": "Fagales", "family": "", "scientificName": "Betula papyrifera", "scientificNameAuthorship": "", "genus": "Betula", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1154", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Houghton", "municipality": "", "locality": "By Otter Lake.", "decimalLatitude": "46.917412", "decimalLongitude": "-88.585273", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}