With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
His
connection
with
Watrous
was
especially
fortuitous
and
they
maintained
contact
for
many
years
.
His:O
connection:O
with:O
Watrous:person-artist/author
was:O
especially:O
fortuitous:O
and:O
they:O
maintained:O
contact:O
for:O
many:O
years:O
.:O