With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
also
used
by
several
Metro
Express
,
GTrans
GTrans
,
LADOT
Commuter
Express
,
Orange
County
Transportation
Authority
,
and
Torrance
Transit
bus
services
,
most
of
which
only
run
during
weekday
peak
periods
.
It:O
is:O
also:O
used:O
by:O
several:O
Metro:organization-company
Express:organization-company
,:O
GTrans:organization-company
GTrans:organization-company
,:O
LADOT:organization-company
Commuter:organization-company
Express:organization-company
,:O
Orange:organization-company
County:organization-company
Transportation:organization-company
Authority:organization-company
,:O
and:O
Torrance:organization-company
Transit:organization-company
bus:organization-company
services:organization-company
,:O
most:O
of:O
which:O
only:O
run:O
during:O
weekday:O
peak:O
periods:O
.:O