http://data.gdeltproject.org/gdeltv3/web/ngrams/20250705231500.1gram.txt.gz
http://data.gdeltproject.org/gdeltv3/web/ngrams/20250705231500.2gram.txt.gz
http://data.gdeltproject.org/gdeltv3/web/ngrams/20250705231500.chargram.txt.gz