With no explanation, label each line with "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
was
an
early
incumbent
in
the
post
of
Colonel
SAS
and
did
much
to
expand
the
Special
Air
Service
's
role
.
He:O
was:O
an:O
early:O
incumbent:O
in:O
the:O
post:O
of:O
Colonel:O
SAS:organization-government/governmentagency
and:O
did:O
much:O
to:O
expand:O
the:O
Special:organization-government/governmentagency
Air:organization-government/governmentagency
Service:organization-government/governmentagency
's:O
role:O
.:O