<s>
According	O
to	O
the	O
German	O
expert	O
Andreas	O
Grosser	O
,	O
at	O
least	O
five	O
different	O
output	O
transformers	O
were	O
used	O
within	O
the	O
U	B-Algorithm
47	I-Algorithm
.	O
</s>
