With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
2007
,
a
project
was
started
to
port
the
sourcecode
from
the
original
MS-DOS
version
to
the
Simple
DirectMedia
Layer
library
.
In:O
2007:O
,:O
a:O
project:O
was:O
started:O
to:O
port:O
the:O
sourcecode:O
from:O
the:O
original:O
MS-DOS:product-software
version:O
to:O
the:O
Simple:product-software
DirectMedia:product-software
Layer:product-software
library:product-software
.:O