With no explanation, label each line with "product-airplane", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Dezhurov
served
as
the
Mir
E-18
commander
.
Dezhurov:person-other
served:O
as:O
the:O
Mir:product-airplane
E-18:product-airplane
commander:O
.:O