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 Q5m cyperaceae   zXYf along rt 94, about 0.4 mile west of statenville at alapaha river.  Echols  3os       - United States 1400837 I  rhynchospora perplexa a+O2d   4: 92-336  1992-05-24 M$0    britton A])P    _ ;u( VERN E. MCNEILUS    
{"catalogNumber": "1400837", "order": "", "family": "Cyperaceae", "scientificName": "Rhynchospora perplexa", "scientificNameAuthorship": "Britton", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Vern E. McNeilus", "recordNumber": "92-336", "verbatimEventDate": "1992-05-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Echols", "municipality": "", "locality": "Along Rt 94, about 0.4 mile west of Statenville at Alapaha River.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}