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": ""}
    ]b muehlenbergii   r 2003-06-20 muehlenbergii        :SX2k6 var.        ivQ!O 0.45 mile west of W 2401 Street (Deer Park Road), north side of IL Route 71, just west of [Covell Creek, ca 320 meters south-southwest of mile 237 of IllinoiBs River, west of South Ottawa.   Cd_ POALES  *=f$S united states     Wz0 Cyperaceae   
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "muehlenbergii", "verbatimTaxonRank": "var.", "infraspecificEpithet": "muehlenbergii", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2003-06-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "0.45 mile west of W 2401 Street (Deer Park Road), north side of IL Route 71, just west of Covell Creek, ca 320 meters south-southwest of mile 237 of Illinois River, west of South Ottawa.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}