With no explanation, label each line with "location-GPE", "O", "person-actor", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
While
touring
with
Ivan
Koloff
,
he
later
began
wrestling
as
Alexis
Smirnoff
in
San
Francisco
during
1977
.
While:O
touring:O
with:O
Ivan:person-actor
Koloff:person-actor
,:O
he:O
later:O
began:O
wrestling:O
as:O
Alexis:person-other
Smirnoff:person-other
in:O
San:location-GPE
Francisco:location-GPE
during:O
1977:O
.:O