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": ""}
    3 un 1970-07-15 americanum Nz T  Campanulastrum americanum *r  sylvia m. taylor Y    ~6R1  s.n.   [Approx. coordinates are for the W end of the north swamp in HorneGr Woods] h     ,n8 Horner Woods, W end of sw4mp at N side of property WASHTENAW `   IN MOIST RICH SOIL BY LARGE SWAMP. UNDER ACER NIGRUM. :A1QQ     ~l`8Z united stat3s  ( (l.) small  1289688    campanulaceae =T    
{"catalogNumber": "1289688", "order": "", "family": "Campanulaceae", "scientificName": "Campanulastrum americanum", "scientificNameAuthorship": "(L.) Small", "genus": "", "subgenus": "", "specificEpithet": "americanum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Sylvia M. Taylor", "recordNumber": "s.n.", "verbatimEventDate": "1970-07-15", "habitat": "In moist rich soil by large swamp. Under Acer nigrum.", "occurrenceRemarks": "[Approx. coordinates are for the W end of the north swamp in Horner Woods]", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "Horner Woods, W end of swamp at N side of property", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}