With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
OpenBSD
Secure
Shell
is
based
on
the
original
SSH
.
OpenBSD:product-software
Secure:product-software
Shell:product-software
is:O
based:O
on:O
the:O
original:O
SSH:product-software
.:O