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": ""}
       S.N. $C<     HQ 1472237 mary h. clark 6q :G      AC PONTIACB.  iRx+ 42.63862      w Anticlea  0`kPv ANTICLEA ELEGANS    %^#O elegans  Melanthiaceae U     (Pursh) Rydb. sH9B 
{"catalogNumber": "1472237", "order": "", "family": "Melanthiaceae", "scientificName": "Anticlea elegans", "scientificNameAuthorship": "(Pursh) Rydb.", "genus": "Anticlea", "subgenus": "", "specificEpithet": "elegans", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary H. Clark", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Pontiac.", "decimalLatitude": "42.63862", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}