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": ""}
s.n. rAU    united states %#@-      7 leersia virginica Leersia IGFw  WILLD. kN~  contact um herbarium D^7    SAMu) 1416650 maryland sEMQY  Poaceae )$Q  VIRGIMICA ,[j     &nU Adrian J. Pieters   1896-09-07 n&Pj     tsm Poales    
{"catalogNumber": "1416650", "order": "Poales", "family": "Poaceae", "scientificName": "Leersia virginica", "scientificNameAuthorship": "Willd.", "genus": "Leersia", "subgenus": "", "specificEpithet": "virginica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Adrian J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1896-09-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Maryland", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}