With no explanation, label each line with "O", "organization-sportsteam", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
1999
,
he
returned
to
Boca
,
and
this
time
under
Carlos
Bianchi
's
command
,
to
have
continuity
in
the
main
squad
.
In:O
1999:O
,:O
he:O
returned:O
to:O
Boca:organization-sportsteam
,:O
and:O
this:O
time:O
under:O
Carlos:person-other
Bianchi:person-other
's:O
command:O
,:O
to:O
have:O
continuity:O
in:O
the:O
main:O
squad:O
.:O