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 ":".
Since
it
was
scanned
electronically
in
elevation
,
the
AN/SPS-26
set
did
not
need
a
separate
height-finding
radar
.
Since:O
it:O
was:O
scanned:O
electronically:O
in:O
elevation:O
,:O
the:O
AN/SPS-26:product-other
set:O
did:O
not:O
need:O
a:O
separate:O
height-finding:O
radar:O
.:O