(;GM[1]FF[4]SZ[19]
GN[Sente nature (outside stones alive)]
PC[http://senseis.xmp.net/?SenteNature]AP[GoWiki:2009]
DT[2011-12-19]
C[Diagram from http://senseis.xmp.net/?SenteNature

Sente nature (outside stones alive)]
PL[B]

AB[aa][ba][ca][fa][fb]
AW[ab][bb][cb][db][eb]

;B[ea]C[B1]MN[1]

;
)
