With no explanation, label each line with "O", "organization-company", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
That
's
why
Martin
started
Atlas
Comics
.
That:O
's:O
why:O
Martin:person-other
started:O
Atlas:organization-company
Comics:organization-company
.:O