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 ":".
Successive
revisions
of
Concurrent
CP/M
incorporated
MS-DOS
API
emulation
(
since
1983
)
,
which
gradually
added
more
support
for
DOS
applications
and
the
FAT
file
system
.
Successive:O
revisions:O
of:O
Concurrent:O
CP/M:O
incorporated:O
MS-DOS:O
API:O
emulation:O
(:O
since:O
1983:O
):O
,:O
which:O
gradually:O
added:O
more:O
support:O
for:O
DOS:O
applications:O
and:O
the:O
FAT:O
file:O
system:O
.:O