With no explanation, label each line with "organization-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
ISRO
currently
operates
three
Radar
Imaging
Satellites
(
RISAT
)
.
ISRO:organization-other
currently:O
operates:O
three:O
Radar:O
Imaging:O
Satellites:O
(:O
RISAT:O
):O
.:O