With no explanation, label each line with "person-athlete", "organization-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Harrison
signed
with
the
Cleveland
Browns
as
an
undrafted
free
agent
on
May
4
,
2018
.
Harrison:person-athlete
signed:O
with:O
the:O
Cleveland:organization-other
Browns:organization-other
as:O
an:O
undrafted:O
free:O
agent:O
on:O
May:O
4:O
,:O
2018:O
.:O