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": ""}
   iN panicum gattingeri  418 r7,pw   I NO DATA  WASHINGTON, D.C. iep  poales V.t       = POACEAE    w United States   C Near Washington D.C.  #lv 1418893 Nash S4F/      6y Panicum   George B. Sudworth sw   jluCt gattingeri 
{"catalogNumber": "1418893", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum gattingeri", "scientificNameAuthorship": "Nash", "genus": "Panicum", "subgenus": "", "specificEpithet": "gattingeri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George B. Sudworth", "recordNumber": "418", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Washington, D.C.", "county": "no data", "municipality": "", "locality": "Near Washington D.C.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}