With no explanation, label each line with "location-GPE", "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
He
is
best
known
as
the
builder
of
the
North
Bridge
,
which
links
the
Old
and
New
Towns
of
Edinburgh
,
Scotland
.
He:O
is:O
best:O
known:O
as:O
the:O
builder:O
of:O
the:O
North:building-other
Bridge:building-other
,:O
which:O
links:O
the:O
Old:O
and:O
New:O
Towns:O
of:O
Edinburgh:location-GPE
,:O
Scotland:location-GPE
.:O