With no explanation, label each line with "O", "other-astronomything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
rising
of
Betelgeuse
at
around
3
a.m.
in
late
summer
and
autumn
signified
the
time
for
village
men
to
go
to
the
fields
and
plough
.
The:O
rising:O
of:O
Betelgeuse:other-astronomything
at:O
around:O
3:O
a.m.:O
in:O
late:O
summer:O
and:O
autumn:O
signified:O
the:O
time:O
for:O
village:O
men:O
to:O
go:O
to:O
the:O
fields:O
and:O
plough:O
.:O