With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
first
known
form
of
hypoventilation
occurred
in
the
1950s
during
training
of
the
runners
of
Eastern
Europe
and
former
USSR
.
The:O
first:O
known:O
form:O
of:O
hypoventilation:O
occurred:O
in:O
the:O
1950s:O
during:O
training:O
of:O
the:O
runners:O
of:O
Eastern:O
Europe:location-GPE
and:O
former:O
USSR:location-GPE
.:O