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": ""}
  x7R LOUISIANA   > B2 halepense    j POINTE A LA HACHE  @ 1424148  (l.) pers. g?<Ya  UNITED STATES       g) a. b. langlois   / Sorqhum halebense       Q S.N. st. martin (wpvI      - T sorghum
{"catalogNumber": "1424148", "order": "", "family": "", "scientificName": "Sorghum halepense", "scientificNameAuthorship": "(L.) Pers.", "genus": "Sorghum", "subgenus": "", "specificEpithet": "halepense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. B. Langlois", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "St. Martin", "municipality": "", "locality": "Pointe a la Hache", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}