With no explanation, label each line with "location-GPE", "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Then
he
defeated
Tunisian
Ahmed
Mejri
with
a
16–7
score
before
losing
to
Vasyl
Lomachenko
of
Ukraine
in
the
quarterfinals
14–9
.
Then:O
he:O
defeated:O
Tunisian:location-GPE
Ahmed:person-athlete
Mejri:person-athlete
with:O
a:O
16–7:O
score:O
before:O
losing:O
to:O
Vasyl:person-athlete
Lomachenko:person-athlete
of:O
Ukraine:location-GPE
in:O
the:O
quarterfinals:O
14–9:O
.:O