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": ""}
kerr zJ      CONIUM MACULATUM 711@+      ixW texas 1431957 8_  on the guadalupe river w of ingram <Ctr   1940-05-17 @|         m5z^ L.  3kax APIACEAE    maculatum `?$F$  PETALS WHITE, PLANTS 1 M. HIGH; ABUNDANT IN RIVER BOTTOMS BETWEEN AUSTIN AND KERRVILLE / 
{"catalogNumber": "1431957", "order": "", "family": "Apiaceae", "scientificName": "Conium maculatum", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "maculatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1940-05-17", "habitat": "", "occurrenceRemarks": "Petals white, plants 1 m. high; abundant in river bottoms between Austin and Kerrville", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "Kerr", "municipality": "", "locality": "On the Guadalupe River W of Ingram", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}