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": ""}
 yo, SEVERA LARGE TREES (CA. 8-10" DBH) # i near old cottages at east end of miners basin.  |H w Michigan Populus grandidentata  |n    In sandy soil. ay>  Populus MbEq    N _2  ALICACEAE  TN  1973-08-17      XF Robert H. Read  GRANDIDENTATA A9Z   malpighiales **S5   487 i k  -86.54028 j   D,5q alger 46.494688 Urb   #@E Michx. 
{"catalogNumber": "", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Populus grandidentata", "scientificNameAuthorship": "Michx.", "genus": "Populus", "subgenus": "", "specificEpithet": "grandidentata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert H. Read", "recordNumber": "487", "verbatimEventDate": "1973-08-17", "habitat": "In sandy soil.", "occurrenceRemarks": "Several large trees (ca. 8-10\" DBH)", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "Near old cottages at east end of Miners Basin.", "decimalLatitude": "46.494688", "decimalLongitude": "-86.54028", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}