http://data.gdeltproject.org/gdeltv3/web/ngrams/20251217184500.1gram.txt.gz
http://data.gdeltproject.org/gdeltv3/web/ngrams/20251217184500.2gram.txt.gz
http://data.gdeltproject.org/gdeltv3/web/ngrams/20251217184500.chargram.txt.gz