With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Salmon
and
sea
trout
migrate
up
to
Magalaupet
(
approximately
)
and
at
optimal
water
discharge
probably
even
further
.
Salmon:O
and:O
sea:O
trout:O
migrate:O
up:O
to:O
Magalaupet:location-GPE
(:O
approximately:O
):O
and:O
at:O
optimal:O
water:O
discharge:O
probably:O
even:O
further:O
.:O