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": ""}
     Grey   h. karst. +&*B     n / 6892   B,UtG A. A. REZNICEK CANADA yurK7  old fields grown up with crataegus spp., locally pastured and, in a few areas, seepy with dense gr0wth of young thuja occidentalis K w6    wolffia L*ET>   v[M< 1982-07-24      columbiana P    Collingwood Township, Conc. I-II, lots 3-4, 8 km southwest of Collingwood, Pretty River Valley      fe0D Ontario  ](;j 1663136 
{"catalogNumber": "1663136", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "H. Karst.", "genus": "Wolffia", "subgenus": "", "specificEpithet": "columbiana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. A. Reznicek", "recordNumber": "6892", "verbatimEventDate": "1982-07-24", "habitat": "Old Fields grown up with Crataegus spp., locally pastured and, in a few areas, seepy with dense growth of young Thuja occidentalis", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Grey", "municipality": "", "locality": "Collingwood Township, Conc. I-II, lots 3-4, 8 km southwest of Collingwood, Pretty River Valley", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}