<s>
Sphere	O
was	O
a	O
blog	O
search	B-Application
engine	I-Application
.	O
</s>
<s>
The	O
Sphere	O
search	B-Application
engine	I-Application
delivered	O
blog	O
posts	O
based	O
on	O
algorithms	O
that	O
combine	O
semantic	O
matching	O
with	O
authority	O
factors	O
to	O
deliver	O
results	O
relevant	O
to	O
the	O
search	O
query	O
.	O
</s>
<s>
The	O
search	B-Application
engine	I-Application
required	O
that	O
JavaScript	B-Language
is	O
turned	O
on	O
in	O
the	O
visitor	O
's	O
browser	O
.	O
</s>
