id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
aijssr-427	Asgharzada, Mahmood	Definition of Natural Languages Using Context-free Grammer: In Context of Dari Language	2019	4	.pdf	application/pdf	2646	145	56	“Natural language processing is mainly working with the understanding of nature (syntax) and the meaning (semantics and pragmatics) of natural languages” (Klabunde, R. 2002). Researchers have worked for more than 6 decades on definition of syntax of natural languages using context-free grammer.	cache/aijssr-427.pdf	txt/aijssr-427.txt