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": ""}
 Rw Z Mature floodplain forest. Soil infrequently flooded. Associat?es: Acer migrum (common); Celtis occidentalis.   Ba$ = quercus shumardii   >R 1188484  SHUMARDII pBg&      a Buckley    "Only observed one tree. Definitely not common here." "A fine specimen 2-3 feet in diametr. Buttressed base. Bark similar to red oak. This branch was lying on the ground. Soil is mapped as Shoals silt loam and Sloan silt loam." Zp#    -83.24952 :   Michigan e   N Fagaceae  Quercus 3   m=? 1323 2001-0512 U6dnO  
{"catalogNumber": "1188484", "order": "", "family": "Fagaceae", "scientificName": "Quercus shumardii", "scientificNameAuthorship": "Buckley", "genus": "Quercus", "subgenus": "", "specificEpithet": "shumardii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1323", "verbatimEventDate": "2001-05-12", "habitat": "Mature floodplain forest. Soil infrequently flooded. Associates: Acer nigrum (common); Celtis occidentalis.", "occurrenceRemarks": "\"Only observed one tree. Definitely not common here.\" \"A fine specimen 2-3 feet in diameter. Buttressed base. Bark similar to red oak. This branch was lying on the ground. Soil is mapped as Shoals silt loam and Sloan silt loam.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.24952", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}