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": ""}
    united states    8[*c michiganensis  nh 1928-10-28   284 Lo  -83.729065 n:Hh   o Crataegus 42.235702 Oz yx  Rosaceae  z;  Michigan 7iY    : "tree no. 21"    uIcu- 1466468  ac succulenta Crataegus succulenta var. michiganensis 0478w  Rosales Q ~    WASHTENAW     t (Ashe) E.J.Palmer  var. | 
{"catalogNumber": "1466468", "order": "Rosales", "family": "Rosaceae", "scientificName": "Crataegus succulenta var. michiganensis", "scientificNameAuthorship": "(Ashe) E.J.Palmer", "genus": "Crataegus", "subgenus": "", "specificEpithet": "succulenta", "verbatimTaxonRank": "var.", "infraspecificEpithet": "michiganensis", "identifiedBy": "", "recordedBy": "", "recordNumber": "284", "verbatimEventDate": "1928-10-28", "habitat": "", "occurrenceRemarks": "\"Tree No. 21\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.235702", "decimalLongitude": "-83.729065", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}