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": ""}
 PB8 2011-05-23     <| LAURA RERICHA & GEROULD WILHELM   jD  LAEVICONICA    <~f Carex laeviconica      u 4045   d` unitedstates Cyperaceae )(         <h NEAR COLUMBUS JUNCTION, IN RIPARIAN MEADOW ALONG THE IOWA RIVER   mc&_< IOWA  
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Carex laeviconica", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "laeviconica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Laura Rericha & Gerould Wilhelm", "recordNumber": "4045", "verbatimEventDate": "2011-05-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Iowa", "county": "", "municipality": "", "locality": "Near Columbus Junction, in riparian meadow along the Iowa River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}