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": ""}
 `[E dougan canal near the tow nship line between urana and salem (ca. 1 mi. n of urbana) 1838-05-19 5 B$   EH|[  john samples  Malpighiales E[9    , violaceae  United States w        1507516 jPW    0 s.n.  |)I  CHAMPAIGN  f@b Lviola    AITON Y    /74 ohio Viola sagittata o  MOIST MEADOWS Mk(   C3x sagittata 
{"catalogNumber": "1507516", "order": "Malpighiales", "family": "Violaceae", "scientificName": "Viola sagittata", "scientificNameAuthorship": "Aiton", "genus": "Viola", "subgenus": "", "specificEpithet": "sagittata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Samples", "recordNumber": "s.n.", "verbatimEventDate": "1838-05-19", "habitat": "Moist meadows", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Ohio", "county": "Champaign", "municipality": "", "locality": "Dougan canal near the township line between Urbana and Salem (ca. 1 mi. N of Urbana)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}