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 ":".
Clashes
between
the
Syria-loyal
PLA
and
militants
occurred
throughout
the
country
.
Clashes:O
between:O
the:O
Syria-loyal:O
PLA:O
and:O
militants:O
occurred:O
throughout:O
the:O
country:O
.:O