With no explanation, label each line with "product-other", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Maclisp
began
on
Digital
Equipment
Corporation
PDP-6
and
PDP-10
computers
running
the
Incompatible
Timesharing
System
(
ITS
)
;
later
it
was
ported
to
all
other
PDP-10
operating
systems
,
for
example
,
``
Timesharing
/
Total
Operating
System
``
,
TOPS-10
and
TOPS-20
.
Maclisp:product-other
began:O
on:O
Digital:organization-company
Equipment:organization-company
Corporation:organization-company
PDP-6:product-other
and:O
PDP-10:product-other
computers:O
running:O
the:O
Incompatible:product-other
Timesharing:product-other
System:product-other
(:O
ITS:product-other
):O
;:O
later:O
it:O
was:O
ported:O
to:O
all:O
other:O
PDP-10:product-other
operating:O
systems:O
,:O
for:O
example:O
,:O
``:O
Timesharing:product-other
/:O
Total:product-other
Operating:product-other
System:product-other
``:O
,:O
TOPS-10:product-other
and:O
TOPS-20:product-other
.:O