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": ""}
      Ss a. j. pieters  :MZ  1897-05-16    WASHIN6TON, D.C. 9f~   ! sylvestris  o POA SYLVESTRIS a. gray    PIERCE CREEK @h     POA Y%  1422610  (9r     5k POACEAE  _ UNITED STATES     POALES  s.n. &FG 
{"catalogNumber": "1422610", "order": "Poales", "family": "Poaceae", "scientificName": "Poa sylvestris", "scientificNameAuthorship": "A. Gray", "genus": "Poa", "subgenus": "", "specificEpithet": "sylvestris", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. J. Pieters", "recordNumber": "s.n.", "verbatimEventDate": "1897-05-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Washington, D.C.", "county": "", "municipality": "", "locality": "Pierce Creek", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}