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": ""}
 ):r R.S.W. BOBBETTE   1284586 R    lactuca biennis Nb   `u  ASTERACEAE   ,Rq$ simcoe  Contact UM Herbarium 6B5lm    ASTERALES lhcx    197-08-03 BDn   be BIENNIS  M (Moench) Fernald  M CANADA  &, Ontario   lactuca .  1917 zg 1  
{"catalogNumber": "1284586", "order": "Asterales", "family": "Asteraceae", "scientificName": "Lactuca biennis", "scientificNameAuthorship": "(Moench) Fernald", "genus": "Lactuca", "subgenus": "", "specificEpithet": "biennis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.S.W. Bobbette", "recordNumber": "1917", "verbatimEventDate": "1972-08-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Simcoe", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}