With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
He
married
Ellen
Chapman
in
November
1966
,
which
ended
in
divorce
.
He:O
married:O
Ellen:person-other
Chapman:person-other
in:O
November:O
1966:O
,:O
which:O
ended:O
in:O
divorce:O
.:O