With no explanation, label each line with "event-attack/battle/war/militaryconflict", "organization-other", "product-ship", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
HMS
``
Campania
``
was
an
escort
aircraft
carrier
of
the
Royal
Navy
that
saw
service
during
the
Second
World
War
.
HMS:organization-other
``:O
Campania:product-ship
``:O
was:O
an:O
escort:O
aircraft:O
carrier:O
of:O
the:O
Royal:organization-other
Navy:organization-other
that:O
saw:O
service:O
during:O
the:O
Second:event-attack/battle/war/militaryconflict
World:event-attack/battle/war/militaryconflict
War:event-attack/battle/war/militaryconflict
.:O