With no explanation, label each line with "O", "person-athlete", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
On
March
1
,
2019
,
after
speculation
and
Amarikwa
appearing
at
D.C.
United
practices
,
Quincy
Amarikwa
signed
with
D.C.
United
.
On:O
March:O
1:O
,:O
2019:O
,:O
after:O
speculation:O
and:O
Amarikwa:person-athlete
appearing:O
at:O
D.C.:organization-sportsteam
United:organization-sportsteam
practices:O
,:O
Quincy:person-athlete
Amarikwa:person-athlete
signed:O
with:O
D.C.:organization-sportsteam
United:organization-sportsteam
.:O