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": ""}
 Union 6   GdT  illinois   Loy R. Phillippe, David Ketzner  Q  CAREX  i/aY    Q2n retroflexa  |= muhl. ex willd. Atwood Ridge Research Natural Area, Jonesboro 7.5 minute topographic map.  Ah  poales       cyperaceae 9n SS   Cn 18670     TRS: T13S R2W SEC 4 SW1/4 NE1/4 U-3C  1991-05-07 ,A^C<  united states   1384765 oUDA     < CAREX RETROFLEXA
{"catalogNumber": "1384765", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex retroflexa", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "Carex", "subgenus": "", "specificEpithet": "retroflexa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Loy R. Phillippe, David Ketzner", "recordNumber": "18670", "verbatimEventDate": "1991-05-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Illinois", "county": "Union", "municipality": "", "locality": "Atwood Ridge Research Natural Area, Jonesboro 7.5 minute topographic map.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "TRS: T13S R2W sec 4 SW1/4 NE1/4", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}