With no explanation, label each line with "O", "event-attack/battle/war/militaryconflict", "organization-government/governmentagency", "person-soldier", "product-ship", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
``
Hilbert
``
also
played
a
key
role
in
protecting
our
oilers
which
fueled
Admiral
Marc
Mitscher
's
Fast
Carrier
Task
Force
engaged
in
the
Battle
of
the
Philippine
Sea
—
one
of
the
most
decisive
battles
of
the
war
.
``:O
Hilbert:product-ship
``:O
also:O
played:O
a:O
key:O
role:O
in:O
protecting:O
our:O
oilers:O
which:O
fueled:O
Admiral:O
Marc:person-soldier
Mitscher:person-soldier
's:O
Fast:organization-government/governmentagency
Carrier:organization-government/governmentagency
Task:organization-government/governmentagency
Force:organization-government/governmentagency
engaged:O
in:O
the:O
Battle:event-attack/battle/war/militaryconflict
of:event-attack/battle/war/militaryconflict
the:event-attack/battle/war/militaryconflict
Philippine:event-attack/battle/war/militaryconflict
Sea:event-attack/battle/war/militaryconflict
—:O
one:O
of:O
the:O
most:O
decisive:O
battles:O
of:O
the:O
war:O
.:O