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 ":".
It
features
hands-on
exhibits
,
interactive
theaters
,
aquaria
,
digital
high-definition
films
and
an
extensive
variety
of
educational
programs
.
It:O
features:O
hands-on:O
exhibits:O
,:O
interactive:O
theaters:O
,:O
aquaria:O
,:O
digital:O
high-definition:O
films:O
and:O
an:O
extensive:O
variety:O
of:O
educational:O
programs:O
.:O