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 ":".
Her
research
focuses
on
gene
therapy
for
retinal
diseases
.
Her:O
research:O
focuses:O
on:O
gene:O
therapy:O
for:O
retinal:O
diseases:O
.:O