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": ""}
   X Steven R. Hill  2003-06-20 ce&   41.316972 >z      !+< CAREX MUEHLENBERGII VAR. MUEHLENBERGII     N_- Cyperaceae   Cb< mueblenbergii   B+ lasalle    Ja0Ff var.  illinois  3   , n,x 0.45 mile wet of w 2401h street (deer park road), north side of il route 71, just west of covell creek, ca 320 meters south-southwestv of mile 237 of illinois river, west of southottawa.   
{"catalogNumber": "", "order": "", "family": "Cyperaceae", "scientificName": "Carex muehlenbergii var. muehlenbergii", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "muehlenbergii", "identifiedBy": "", "recordedBy": "Steven R. Hill", "recordNumber": "", "verbatimEventDate": "2003-06-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Illinois", "county": "LaSalle", "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": "41.316972", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}