<s>
His	O
study	O
of	O
Romance	B-Application
of	I-Application
the	I-Application
Three	I-Application
Kingdoms	I-Application
used	O
a	O
new	O
approach	O
to	O
analyse	O
the	O
relationship	O
among	O
the	O
various	O
versions	O
,	O
extrapolating	O
the	O
original	O
text	O
of	O
that	O
novel	O
.	O
</s>
