With no explanation, label each line with "location-GPE", "O", "organization-politicalparty", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Left
Front
governed
Tripura
1978-1988
,
and
again
from
1993
to
2018
.
The:O
Left:organization-politicalparty
Front:organization-politicalparty
governed:O
Tripura:location-GPE
1978-1988:O
,:O
and:O
again:O
from:O
1993:O
to:O
2018:O
.:O