With no explanation, label each line with "O", "organization-religion", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
massacre
further
worsened
relations
and
increased
enmity
between
the
Western
and
Eastern
Christian
churches
,
and
a
sequence
of
hostilities
between
the
two
followed
.
The:O
massacre:O
further:O
worsened:O
relations:O
and:O
increased:O
enmity:O
between:O
the:O
Western:organization-religion
and:O
Eastern:organization-religion
Christian:organization-religion
churches:O
,:O
and:O
a:O
sequence:O
of:O
hostilities:O
between:O
the:O
two:O
followed:O
.:O