With no explanation, label each line with "art-writtenart", "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "building-airport" or "building-hospital" preceded by ":".
One
of
the
most
active
amateur
astronomers
in
Japan
,
he
was
also
an
editor
of
the
Japanese
``
Ephemerides
of
Minor
Planets
``
.
One:O
of:O
the:O
most:O
active:O
amateur:O
astronomers:O
in:O
Japan:location-GPE
,:O
he:O
was:O
also:O
an:O
editor:O
of:O
the:O
Japanese:location-GPE
``:O
Ephemerides:art-writtenart
of:art-writtenart
Minor:art-writtenart
Planets:art-writtenart
``:O
.:O