With no explanation, label each line with "location-GPE", "O", "product-airplane", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
oversaw
the
Canadian
portion
of
the
investigation
of
the
Swissair
Flight
111
air
crash
.
He:O
oversaw:O
the:O
Canadian:location-GPE
portion:O
of:O
the:O
investigation:O
of:O
the:O
Swissair:product-airplane
Flight:product-airplane
111:product-airplane
air:O
crash:O
.:O