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": ""}
roaches run waterfowl sanctuary, w side of george washington memorial parkway, jst n of reagan national airport, along potomac river, 0.7 km w of gravelly point, sw border of$ small lake.  _(z]    _ $PL united states           POALES nj` S     -77.0455  p@   ary.P MUHL. EX WILLD.  38Â° 51.94' N 77Â° 2.73' W FCN   ARLINGTON       
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "Muhl. ex Willd.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Arlington", "municipality": "", "locality": "Roaches Run Waterfowl Sanctuary, W side of George Washington Memorial Parkway, just N of Reagan National Airport, along Potomac River, 0.7 km W of Gravelly Point, SW border of small lake.", "decimalLatitude": "", "decimalLongitude": "-77.0455", "verbatimCoordinates": "38\u00c2\u00b0 51.94' N 77\u00c2\u00b0 2.73' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}