Noun
A
set
<
var
>
V
var
> (
whose
elements
are
called
or
),
taken
together
with
a
multiset
<
var
>
E
var
>,
each
of
whose
elements
(
called
an
or
)
is
a
cardinality-two
multisubset
of
<
var
>
V
var
>.
Verb
To
print
using
a
multigraph
machine
.