With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
In
the
end
it
did
not
matter
since
when
the
Ptolemies
finally
tried
to
send
aid
and
reinforcements
to
Athens
,
their
fleet
was
defeated
off
Cos
(
probably
in
261
BC
)
.
In:O
the:O
end:O
it:O
did:O
not:O
matter:O
since:O
when:O
the:O
Ptolemies:O
finally:O
tried:O
to:O
send:O
aid:O
and:O
reinforcements:O
to:O
Athens:O
,:O
their:O
fleet:O
was:O
defeated:O
off:O
Cos:O
(:O
probably:O
in:O
261:O
BC:O
):O
.:O