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": ""}
   muhl. ex willd. S.z    9285  nm)S          ~hx Carex retroflexa retroflex4 /F=  1384841 K $3    Outskirts of Little Rock, just S of I-440 at Fourche Dam Pike exit (#5), Little Rock River Port South. yK#:c  ANTON A. RE2NICEK G     poales $C   
{"catalogNumber": "1384841", "order": "Poales", "family": "", "scientificName": "Carex retroflexa", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "", "subgenus": "", "specificEpithet": "retroflexa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Anton A. Reznicek", "recordNumber": "9285", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Outskirts of Little Rock, just S of I-440 at Fourche Dam Pike exit (#5), Little Rock River Port South.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}