<s>
The	O
World	B-Application
Wide	I-Application
Web	I-Application
Worm	I-Application
(	O
WWWW	O
)	O
was	O
one	O
of	O
the	O
earliest	O
search	B-Application
engines	I-Application
for	O
the	O
World	O
Wide	O
Web	O
(	O
WWW	O
)	O
.	O
</s>
<s>
It	O
is	O
claimed	O
by	O
some	O
to	O
be	O
the	O
first	O
search	B-Application
engine	I-Application
,	O
though	O
it	O
was	O
not	O
released	O
until	O
March	O
1994	O
,	O
by	O
which	O
time	O
a	O
number	O
of	O
other	O
search	B-Application
engines	I-Application
had	O
been	O
made	O
publicly	O
available	O
.	O
</s>
<s>
In	O
contrast	O
to	O
present-day	O
search	B-Application
engines	I-Application
,	O
the	O
WWWW	O
featured	O
support	O
for	O
Perl	B-Language
regular	B-Language
expressions	I-Language
.	O
</s>
<s>
Circa	O
1997	O
Goto.com	B-Application
purchased	O
WWWW	O
's	O
technology	O
.	O
</s>
<s>
McBryan	O
stated	O
in	O
a	O
2016	O
podcast	O
that	O
WWWW	O
was	O
an	O
educational	O
project	O
and	O
he	O
never	O
thought	O
of	O
commercializing	O
it	O
like	O
Excite	B-Application
or	O
Yahoo	B-Application
!	I-Application
</s>
