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 ":".
She
has
practised
classical
dance
since
her
childhood
.
She:O
has:O
practised:O
classical:O
dance:O
since:O
her:O
childhood:O
.:O