With no explanation, label each line with "building-other", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
President
Iskander
Mirza
laid
the
foundation-stone
of
Guddu
Barrage
on
2
February
1957
.
President:O
Iskander:person-politician
Mirza:person-politician
laid:O
the:O
foundation-stone:O
of:O
Guddu:building-other
Barrage:building-other
on:O
2:O
February:O
1957:O
.:O