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": ""}
  MICHAEL J. OLDHAM K    Z Euphorbiaceae   DSR- subils  A2No Euphorbia davidii   Ko4G ONTARIO     elgin +a   t (68 MALPIGHIALES  1246366 J7XG       C !q 14149 1992-08-12 =F    Q W[dx, RARE, DISTURBED GROUND ADJACENT TO RAILWAY TRACKS  Q ]w7 Canada DAVIDII P?   CITY OF ST. THOMAS RAILWAY YARD, YARMOUTH TOWNSHIP l   u  e euphorbia
{"catalogNumber": "1246366", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia davidii", "scientificNameAuthorship": "Subils", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "davidii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham", "recordNumber": "14149", "verbatimEventDate": "1992-08-12", "habitat": "Rare, disturbed ground adjacent to railway tracks", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Elgin", "municipality": "", "locality": "City of St. Thomas railway yard, Yarmouth Township", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}