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 ":".
Later
on
he
secured
the
first
class
first
position
in
M.A
.
Later:O
on:O
he:O
secured:O
the:O
first:O
class:O
first:O
position:O
in:O
M.A:O
.:O