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 ROBERT H. READ  426 46.484829    % 1304835   ~7 1973-0$8-13 Poaceae h $p   POALES bOe   @ near junction of roads leading to Miners Castle and Miners Basin. Sec. 10 T47N R18W AGRO5TIS GIGANTEA MXfd#   -86.542475 *a   ROTH [    bR$$g UNITED STATES   b Roadside weed in sandy s0il  ;7JE michigan    %= gigantea  Alger :m[ v  369 9P)S%  AGROSTIS &  
{"catalogNumber": "1304835", "order": "Poales", "family": "Poaceae", "scientificName": "Agrostis gigantea", "scientificNameAuthorship": "Roth", "genus": "Agrostis", "subgenus": "", "specificEpithet": "gigantea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert H. Read", "recordNumber": "369", "verbatimEventDate": "1973-08-13", "habitat": "Roadside weed in sandy soil", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Alger", "municipality": "", "locality": "near junction of roads leading to Miners Castle and Miners Basin. Sec. 10 T47N R18W", "decimalLatitude": "46.484829", "decimalLongitude": "-86.542475", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}