With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
game
was
also
one
of
the
first
MMORTTBS
(
Massively
Multiplayer
Online
Real-Time
Turn-Based
Strategy
)
ever
launched
.
The:O
game:O
was:O
also:O
one:O
of:O
the:O
first:O
MMORTTBS:O
(:O
Massively:O
Multiplayer:O
Online:O
Real-Time:O
Turn-Based:O
Strategy:O
):O
ever:O
launched:O
.:O