With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Ayrton
began
his
career
in
1890
as
an
articled
apprentice
to
Harry
Beswick
of
Chester
,
remaining
with
him
until
1897
.
Ayrton:person-other
began:O
his:O
career:O
in:O
1890:O
as:O
an:O
articled:O
apprentice:O
to:O
Harry:person-other
Beswick:person-other
of:O
Chester:location-GPE
,:O
remaining:O
with:O
him:O
until:O
1897:O
.:O