With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Behind
the
cover
is
an
8-segment
LED
track
and
sector
display
.
Behind:O
the:O
cover:O
is:O
an:O
8-segment:product-other
LED:product-other
track:product-other
and:O
sector:O
display:O
.:O