<s>
Touch	B-Operating_System
Pets	I-Operating_System
:	I-Operating_System
Dogs	I-Operating_System
was	O
a	O
game	O
for	O
Apple	O
's	O
iPhone	B-Device
.	O
</s>
<s>
Producer	O
Rod	O
Kiewiet	O
reportedly	O
assigned	O
each	O
student	O
in	O
his	O
political	O
science	O
class	O
,	O
PS	O
141a	O
,	O
to	O
play	O
Touch	B-Operating_System
Pets	I-Operating_System
:	I-Operating_System
Dogs	I-Operating_System
for	O
homework	O
in	O
order	O
to	O
drive	O
up	O
popularity	O
in	O
its	O
waning	O
years	O
.	O
</s>
