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": ""}
L. s >     -81.30956 & l     iv  Canada   5w HUROM    s  J.A. MORTON   $ 1891-09-20  un WINGHAM ontario BW9?    1495229 z     jBVan piperales     I SAURUAUS  T SAURURUSCERNUUS 
{"catalogNumber": "1495229", "order": "Piperales", "family": "", "scientificName": "Saururus cernuus", "scientificNameAuthorship": "L.", "genus": "Saururus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "J.A. Morton", "recordNumber": "", "verbatimEventDate": "1891-09-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Huron", "municipality": "", "locality": "Wingham", "decimalLatitude": "", "decimalLongitude": "-81.30956", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}