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": ""}
  500 $      VIRGATUM    <l 27226        panicum u2  POALES .GO     qFJI UNITED STATES  38â°07'30''n 90â°40'30''w fPr        S  38.125   |H*& 1419273 
{"catalogNumber": "1419273", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Panicum", "subgenus": "", "specificEpithet": "virgatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "27226", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "38.125", "decimalLongitude": "", "verbatimCoordinates": "38\u00c2\u00b007'30''N 90\u00c2\u00b040'30''W", "minimumElevationInMeters": "500", "maximumElevationInMeters": ""}