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": ""}
ADRIAN J. PIETERS (,v     =@ MONTGOMERY         O United State s   l maryland   s.n. 1HGYr    R 1897-05-30 muhl. E.   38.944 T2    : pendulus   Scirpus pendulus #U-r@  -7.1267 2m 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Scirpus pendulus", "scientificNameAuthorship": "Muhl.", "genus": "", "subgenus": "", "specificEpithet": "pendulus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Adrian J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1897-05-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Maryland", "county": "Montgomery", "municipality": "", "locality": "", "decimalLatitude": "38.944", "decimalLongitude": "-77.1267", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}