With no explanation, label each line with "O", "person-athlete", "organization-sportsleague", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Whilst
in
the
north
east
,
both
Underwood
and
Andrew
played
their
rugby
at
Middlesbrough
RUFC
.
Whilst:O
in:O
the:O
north:O
east:O
,:O
both:O
Underwood:O
and:O
Andrew:person-athlete
played:O
their:O
rugby:O
at:O
Middlesbrough:organization-sportsleague
RUFC:organization-sportsleague
.:O