<s>
Decision	B-General_Concept
lists	I-General_Concept
are	O
a	O
representation	O
for	O
Boolean	O
functions	O
which	O
can	O
be	O
easily	O
learnable	O
from	O
examples	O
.	O
</s>
<s>
Single	O
term	O
decision	B-General_Concept
lists	I-General_Concept
are	O
more	O
expressive	O
than	O
disjunctions	O
and	O
conjunctions	O
;	O
however	O
,	O
1-term	O
decision	B-General_Concept
lists	I-General_Concept
are	O
less	O
expressive	O
than	O
the	O
general	O
disjunctive	B-Application
normal	I-Application
form	I-Application
and	O
the	O
conjunctive	B-Application
normal	I-Application
form	I-Application
.	O
</s>
<s>
The	O
language	O
specified	O
by	O
a	O
k-length	O
decision	B-General_Concept
list	I-General_Concept
includes	O
as	O
a	O
subset	O
the	O
language	O
specified	O
by	O
a	O
k-depth	O
decision	B-Algorithm
tree	I-Algorithm
.	O
</s>
<s>
Learning	O
decision	B-General_Concept
lists	I-General_Concept
can	O
be	O
used	O
for	O
attribute	O
efficient	O
learning	O
.	O
</s>
<s>
A	O
decision	B-General_Concept
list	I-General_Concept
(	O
DL	O
)	O
of	O
length	O
is	O
of	O
the	O
form	O
:	O
</s>
<s>
A	O
-DL	O
is	O
a	O
decision	B-General_Concept
list	I-General_Concept
where	O
all	O
of	O
formulas	O
have	O
at	O
most	O
terms	O
.	O
</s>
<s>
Sometimes	O
"	O
decision	B-General_Concept
list	I-General_Concept
"	O
is	O
used	O
to	O
refer	O
to	O
a	O
1-DL	O
,	O
where	O
all	O
of	O
the	O
formulas	O
are	O
either	O
a	O
variable	O
or	O
its	O
negation	O
.	O
</s>
