With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Keshavlal
Mehta
,
son
of
Giridhar
,
recovered
these
documents
in
the
1970s
and
his
descendants
still
live
in
town
.
Keshavlal:person-other
Mehta:person-other
,:O
son:O
of:O
Giridhar:person-other
,:O
recovered:O
these:O
documents:O
in:O
the:O
1970s:O
and:O
his:O
descendants:O
still:O
live:O
in:O
town:O
.:O