With no explanation, label each line with "O", "location-bodiesofwater", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Construction
of
the
Yarrow
Reservoir
designed
by
Liverpool
's
Borough
Engineer
,
Thomas
Duncan
,
began
in
1867
.
Construction:O
of:O
the:O
Yarrow:location-bodiesofwater
Reservoir:location-bodiesofwater
designed:O
by:O
Liverpool:person-other
's:person-other
Borough:person-other
Engineer:O
,:O
Thomas:person-other
Duncan:person-other
,:O
began:O
in:O
1867:O
.:O