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 ":".
He
then
eventually
acquired
a
sampler
.
He:O
then:O
eventually:O
acquired:O
a:O
sampler:product-other
.:O