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 ":".
especifically
in
hematopoietic
stem
cells
.
especifically:O
in:O
hematopoietic:O
stem:O
cells:O
.:O