<s>
Chat	B-Application
line	I-Application
is	O
a	O
services	O
allowing	O
for	O
people	O
to	O
communicate	O
with	O
one	O
another	O
by	O
telephone	O
call	O
.	O
</s>
<s>
However	O
,	O
more	O
recent	O
chat	B-Application
lines	I-Application
are	O
similar	O
to	O
CB	B-Application
radio	I-Application
in	O
which	O
a	O
number	O
of	O
people	O
both	O
listen	O
and	O
speak	O
together	O
.	O
</s>
