<s>
Trivial	B-Language
Graph	I-Language
Format	I-Language
(	O
TGF	O
)	O
is	O
a	O
simple	O
text-based	O
adjacency	B-Data_Structure
list	I-Data_Structure
file	O
format	O
for	O
describing	O
graphs	O
,	O
widely	O
used	O
because	O
of	O
its	O
simplicity	O
.	O
</s>
