With no explanation, label each line with "location-GPE", "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
recompense
he
exchanges
places
with
Arawn
for
a
year
and
defeats
Arawn
's
enemy
Hafgan
,
while
Arawn
rules
in
his
stead
in
Dyfed
.
In:O
recompense:O
he:O
exchanges:O
places:O
with:O
Arawn:person-politician
for:O
a:O
year:O
and:O
defeats:O
Arawn:person-politician
's:O
enemy:O
Hafgan:person-politician
,:O
while:O
Arawn:person-politician
rules:O
in:O
his:O
stead:O
in:O
Dyfed:location-GPE
.:O