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": ""}
  piperales 2&N~    ]) c saruraceae  [>vc VAN BUREN    R South Haven, Mich. Along Black River.       H ml> 1910-07-23    -86.259116 f#1Vf   1309894 gG   uMH Saururus cernuus   4,X United States L.H. PENNINGTON k   CERNUUS su  s.n. :  
{"catalogNumber": "1309894", "order": "Piperales", "family": "Saururaceae", "scientificName": "Saururus cernuus", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "cernuus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L.H. Pennington", "recordNumber": "s.n.", "verbatimEventDate": "1910-07-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Van Buren", "municipality": "", "locality": "South Haven, Mich. Along Black River.", "decimalLatitude": "", "decimalLongitude": "-86.259116", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}