With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
This
condition
is
known
as
refractoriness
to
platelet
transfusion
.
This:O
condition:O
is:O
known:O
as:O
refractoriness:O
to:O
platelet:O
transfusion:O
.:O