With no explanation, label each line with "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1956
Henry
Sears
led
an
effort
advancing
class
yachts
.
In:O
1956:O
Henry:person-athlete
Sears:person-athlete
led:O
an:O
effort:O
advancing:O
class:O
yachts:O
.:O