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": ""}
    kent ?  scirpus expansus o   ANTON A. REZNICEK q7 ?         <NV  SCOTT NAMESTNIK   -85.73855 m 0wJ   c(tj6 MICHIGAN   [ W8 scirpus    G$(#m expansus  v 1496523  ~ 1623 
{"catalogNumber": "1496523", "order": "", "family": "", "scientificName": "Scirpus expansus", "scientificNameAuthorship": "", "genus": "Scirpus", "subgenus": "", "specificEpithet": "expansus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Scott Namestnik", "recordNumber": "1623", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Kent", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-85.73855", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}