Sentence:  For <WSD>Athabascan</WSD> , with a greater range of stems , the first two of five corresponding columns were identical , 1 and 2 stems ; the three others had to be spread somewhat , and are headed respectively * * f ; * * f ; and * * f stems . 
Meaning of the word marked with <WSD> tags:  a group of Amerindian languages (the name coined by an American anthropologist, Edward Sapir)