With no explanation, label each line with "product-game", "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
His
most
recent
Trivial
Pursuit
projects
have
been
exclusively
for
the
US
market
.
His:O
most:O
recent:O
Trivial:product-game
Pursuit:product-game
projects:O
have:O
been:O
exclusively:O
for:O
the:O
US:location-GPE
market:O
.:O