With no explanation, label each line with "O", "other-astronomything", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Owing
to
the
different
headings
taken
by
the
two
planes
,
TWA
's
crossing
of
the
Painted
Desert
line
,
assuming
no
further
course
changes
,
would
be
at
a
13-degree
angle
relative
to
that
of
the
United
flight
,
with
the
Constellation
to
the
left
of
the
DC-7
.
Owing:O
to:O
the:O
different:O
headings:O
taken:O
by:O
the:O
two:O
planes:O
,:O
TWA:organization-company
's:O
crossing:O
of:O
the:O
Painted:O
Desert:O
line:O
,:O
assuming:O
no:O
further:O
course:O
changes:O
,:O
would:O
be:O
at:O
a:O
13-degree:O
angle:O
relative:O
to:O
that:O
of:O
the:O
United:O
flight:O
,:O
with:O
the:O
Constellation:other-astronomything
to:O
the:O
left:O
of:O
the:O
DC-7:other-astronomything
.:O