With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Tektronix
4051
Graphics
Computing
System
was
introduced
in
October
1975
.
The:O
Tektronix:product-other
4051:product-other
Graphics:product-other
Computing:product-other
System:product-other
was:O
introduced:O
in:O
October:O
1975:O
.:O