With no explanation, label each line with "product-car", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Rex
assembles
floats
using
techniques
that
have
spanned
generations
,
entirely
by
hand
.
Rex:product-car
assembles:product-car
floats:product-car
using:O
techniques:O
that:O
have:O
spanned:O
generations:O
,:O
entirely:O
by:O
hand:O
.:O