With no explanation, label each line with "O", "organization-other", "person-politician", "location-GPE", "building-hospital", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
Following
his
discharge
from
the
St.
Thomas
'
Hospital
in
London
on
13
April
2020
after
being
diagnosed
with
COVID-19
,
British
Prime
Minister
Boris
Johnson
described
NHS
medical
care
as
``
astonishing
''
and
that
``
NHS
saved
my
life
.
Following:O
his:O
discharge:O
from:O
the:O
St.:building-hospital
Thomas:building-hospital
':building-hospital
Hospital:building-hospital
in:O
London:location-GPE
on:O
13:O
April:O
2020:O
after:O
being:O
diagnosed:O
with:O
COVID-19:O
,:O
British:location-GPE
Prime:O
Minister:O
Boris:person-politician
Johnson:person-politician
described:O
NHS:organization-other
medical:O
care:O
as:O
``:O
astonishing:O
'':O
and:O
that:O
``:O
NHS:organization-other
saved:O
my:O
life:O
.:O