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": ""}
  avenaceum Y$CwK  PIPTOCHAETIUM H|Vto        1907-06-09 pS    FAIRFAX GV  piptochaetium avenaceum Gb  Poageae sr    M  3705 poales P  1420696 e_V       Great Falls   4, UNITED ST4TES  3# (L.) PARODI Agnes Chase -0n$   VIRGINIA `s;w  
{"catalogNumber": "1420696", "order": "Poales", "family": "Poaceae", "scientificName": "Piptochaetium avenaceum", "scientificNameAuthorship": "(L.) Parodi", "genus": "Piptochaetium", "subgenus": "", "specificEpithet": "avenaceum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Agnes Chase", "recordNumber": "3705", "verbatimEventDate": "1907-06-09", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Virginia", "county": "Fairfax", "municipality": "", "locality": "Great Falls", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}