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": ""}
2.4 mi e on us 190 from its jct. with tx 163, e of iraan H2  1991-08-30 9aC/    Q1`O POCEAE panicum hallii k   #f UNITfED STATES  s. & g. jones     VAEY L+MuK  1418938 t !l   crockett  1Qi?        # Poales hallii `#   7420 Lj Z      Ae. PANICUM  
{"catalogNumber": "1418938", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum hallii", "scientificNameAuthorship": "Vasey", "genus": "Panicum", "subgenus": "", "specificEpithet": "hallii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. & G. Jones", "recordNumber": "7420", "verbatimEventDate": "1991-08-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Crockett", "municipality": "", "locality": "2.4 mi E on US 190 from its jct. with TX 163, E of Iraan", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}