With no explanation, label each line with "location-GPE", "O", "product-ship", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
One
early
chapter
describes
how
O'Toole
,
the
hero
,
gives
a
clever
explanation
to
his
peers
at
Annapolis
,
why
he
chose
,
as
his
first
assignment
,
the
post
of
executive
officer
aboard
an
American
River
Gunboat
in
China
.
One:O
early:O
chapter:O
describes:O
how:O
O'Toole:person-other
,:O
the:O
hero:O
,:O
gives:O
a:O
clever:O
explanation:O
to:O
his:O
peers:O
at:O
Annapolis:location-GPE
,:O
why:O
he:O
chose:O
,:O
as:O
his:O
first:O
assignment:O
,:O
the:O
post:O
of:O
executive:O
officer:O
aboard:O
an:O
American:product-ship
River:product-ship
Gunboat:product-ship
in:O
China:location-GPE
.:O