With no explanation, label each line with "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
Metra
Metra
's
zone-based
fare
system
,
Galewood
is
in
zone
B
.
In:O
Metra:location-GPE
Metra:organization-company
's:O
zone-based:O
fare:O
system:O
,:O
Galewood:location-GPE
is:O
in:O
zone:O
B:O
.:O