With no explanation, label each line with "O", "product-software", "product-food", "person-actor", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
And
at
the
first
Howard
Johnson
's
they
stop
at
,
the
Pez
is
on
Al
.
And:O
at:O
the:O
first:O
Howard:person-actor
Johnson:person-actor
's:O
they:O
stop:O
at:O
,:O
the:O
Pez:product-food
is:O
on:O
Al:product-software
.:O