With no explanation, label each line with "location-GPE", "O", "product-weapon", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Worried
about
his
safety
,
Mannerheim
gave
Tibet
's
spiritual
pontiff
a
Browning
revolver
and
showed
him
how
to
reload
the
weapon
.
Worried:O
about:O
his:O
safety:O
,:O
Mannerheim:person-politician
gave:O
Tibet:location-GPE
's:O
spiritual:O
pontiff:O
a:O
Browning:product-weapon
revolver:product-weapon
and:O
showed:O
him:O
how:O
to:O
reload:O
the:O
weapon:O
.:O