With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Magnes
returned
to
the
United
States
in
April
1948
to
participate
in
an
anti-partition
campaign
.
Magnes:person-other
returned:O
to:O
the:O
United:location-GPE
States:location-GPE
in:O
April:O
1948:O
to:O
participate:O
in:O
an:O
anti-partition:O
campaign:O
.:O