With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
By
1915
,
with
the
completion
of
the
park
,
the
neighborhood
was
mostly
developed
with
large
mansions
for
some
of
the
city
's
wealthiest
people
.
By:O
1915:O
,:O
with:O
the:O
completion:O
of:O
the:O
park:O
,:O
the:O
neighborhood:O
was:O
mostly:O
developed:O
with:O
large:O
mansions:O
for:O
some:O
of:O
the:O
city:O
's:O
wealthiest:O
people:O
.:O