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": ""}
SOUTH HAVEN, MICH. ALONG BLACK RIVER. #-X8    8q Frequent in low open places.    l.    *,             `NM&B Saururus cernuus      ~LFhk CERNUUS     6@# l.h. pennimgton   t -86.259116
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Saururus cernuus", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "cernuus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.H. Pennington", "recordNumber": "", "verbatimEventDate": "", "habitat": "Frequent in low open places.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "South Haven, Mich. Along Black River.", "decimalLatitude": "", "decimalLongitude": "-86.259116", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}