<s>
The	O
Robertson	B-Algorithm
–	I-Algorithm
Webb	I-Algorithm
protocol	I-Algorithm
is	O
a	O
protocol	O
for	O
envy-free	O
cake-cutting	O
which	O
is	O
also	O
near-exact	O
.	O
</s>
<s>
The	O
Robertson	B-Algorithm
–	I-Algorithm
Webb	I-Algorithm
protocol	I-Algorithm
addresses	O
this	O
difficulty	O
by	O
requiring	O
that	O
the	O
division	O
is	O
not	O
only	O
envy-free	O
but	O
also	O
near-exact	O
.	O
</s>
