With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
2
Squadron
,
replacing
their
Beauforts
.
2:O
Squadron:O
,:O
replacing:O
their:O
Beauforts:product-airplane
.:O