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": ""}
   tP ` PANICUM VIRGATUM     United States Krfg   y6 POALES  cp ` BUCKS Panicum +!b    +Ivd virgatum   bristol x=j[  Poaceae C   L l.  4399 l   pennsylvania ~kV    1419283 ! l7    5N   R. R. DREISBAECH  A 1926-08-14 
{"catalogNumber": "1419283", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum virgatum", "scientificNameAuthorship": "L.", "genus": "Panicum", "subgenus": "", "specificEpithet": "virgatum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R. R. Dreisbach", "recordNumber": "4399", "verbatimEventDate": "1926-08-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Pennsylvania", "county": "Bucks", "municipality": "", "locality": "Bristol", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}