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 ":".
End
of
support
for
the
``
Free
Use
''
version
of
BitKeeper
was
officially
July
1
,
2005
,
and
users
were
required
to
switch
to
the
commercial
version
or
change
version
control
system
by
then
.
End:O
of:O
support:O
for:O
the:O
``:O
Free:O
Use:O
'':O
version:O
of:O
BitKeeper:product-software
was:O
officially:O
July:O
1:O
,:O
2005:O
,:O
and:O
users:O
were:O
required:O
to:O
switch:O
to:O
the:O
commercial:O
version:O
or:O
change:O
version:O
control:O
system:O
by:O
then:O
.:O