<s>
Facebook	B-Algorithm
Slingshot	I-Algorithm
was	O
an	O
instant	B-Application
messaging	I-Application
software	O
application	O
for	O
sharing	O
photos	O
and	O
videos	O
with	O
friends	O
,	O
designed	O
by	O
Facebook	O
.	O
</s>
<s>
The	O
app	O
was	O
launched	O
on	O
June	O
18	O
,	O
2014	O
,	O
for	O
Android	B-Application
and	O
iOS	B-Operating_System
devices	I-Operating_System
.	O
</s>
<s>
The	O
app	O
was	O
discontinued	O
and	O
removed	O
from	O
the	O
app	B-Application
store	I-Application
and	O
Google	B-Application
Play	I-Application
store	I-Application
in	O
December	O
2015	O
,	O
after	O
Facebook	O
shut	O
down	O
its	O
"	O
Creative	O
Labs	O
"	O
division	O
.	O
</s>
