<s>
beatmaniaIIDX	O
20	O
tricoro	O
is	O
a	O
music	B-Application
video	I-Application
game	I-Application
and	O
the	O
20th	O
installment	O
of	O
the	O
Beatmania	B-Application
IIDX	I-Application
series	O
of	O
video	O
games	O
.	O
</s>
<s>
Beatmania	B-Application
IIDX	I-Application
tasks	O
the	O
player	O
with	O
performing	O
songs	O
through	O
a	O
controller	O
consisting	O
of	O
seven	O
key	O
buttons	O
and	O
a	O
scratchable	O
turntable	O
.	O
</s>
