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": ""}
 u s.n. 1536994 3C   United States l    B= TRIOSTEUM   yiM  logan DIPSACALES sq        Vvk near colonel james mcpherson's on the lewistown road, about 4 miles northwest of bellefontaine       9-]  1838-06-16  >UA.r caprifoliaceae      G^g john samples
{"catalogNumber": "1536994", "order": "Dipsacales", "family": "Caprifoliaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Triosteum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John Samples", "recordNumber": "s.n.", "verbatimEventDate": "1838-06-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Logan", "municipality": "", "locality": "Near Colonel James McPherson's on the Lewistown road, about 4 miles northwest of Bellefontaine", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}