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": ""}
  @ JEFFERSON   KL&5 OKLAHOMA   4&S 1998-04-26    CAREX TETRASTACHYA cE   lawrence k. magrath N    & AO start ranch, ca 2.9 mi n of waurika on us 81.     #2dJ 1389463  20179 GqN   tetrastachya 7qsw   aoo# CAREX   Poales ,=qI     6PpU UNITED STATES 
{"catalogNumber": "1389463", "order": "Poales", "family": "", "scientificName": "Carex tetrastachya", "scientificNameAuthorship": "", "genus": "Carex", "subgenus": "", "specificEpithet": "tetrastachya", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lawrence K. Magrath", "recordNumber": "20179", "verbatimEventDate": "1998-04-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Oklahoma", "county": "Jefferson", "municipality": "", "locality": "Stuart Ranch, ca 2.9 mi N of Waurika on US 81.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}