With no explanation, label each line with "O", "product-ship", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
episode
contains
the
added
revelation
that
the
character
of
Tuvok
was
on
Sulu
's
ship
``
Excelsior
``
at
the
time
.
The:O
episode:O
contains:O
the:O
added:O
revelation:O
that:O
the:O
character:O
of:O
Tuvok:person-other
was:O
on:O
Sulu:person-other
's:O
ship:O
``:O
Excelsior:product-ship
``:O
at:O
the:O
time:O
.:O