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 ":".
In
the
singles
and
men
's
doubles
event
he
lost
in
the
first
round
.
In:O
the:O
singles:O
and:O
men:O
's:O
doubles:O
event:O
he:O
lost:O
in:O
the:O
first:O
round:O
.:O