With no explanation, label each line with "O", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
One
of
the
latest
projects
that
the
company
was
to
undertake
has
been
the
overhauling
of
the
R
&
amp
;
ER
steam
locomotive
``
River
Mite
``
over
the
Winter
of
2006/07
.
One:O
of:O
the:O
latest:O
projects:O
that:O
the:O
company:O
was:O
to:O
undertake:O
has:O
been:O
the:O
overhauling:O
of:O
the:O
R:product-train
&:product-train
amp:product-train
;:product-train
ER:product-train
steam:O
locomotive:O
``:O
River:product-train
Mite:product-train
``:O
over:O
the:O
Winter:O
of:O
2006/07:O
.:O