<s>
Two-way	B-Application
television	I-Application
can	O
refer	O
to	O
:	O
</s>
<s>
an	O
early	O
name	O
(	O
one	O
of	O
more	O
than	O
a	O
dozen	O
different	O
ones	O
)	O
used	O
for	O
videophones	B-Application
during	O
the	O
period	O
of	O
the	O
1920s	O
to	O
the	O
1960s	O
,	O
</s>
