(;GM[1]FF[4]SZ[19]
GN[One-space enclosure]
PC[http://senseis.xmp.net/?YamashitaFormation]AP[GoWiki:2009]
DT[2017-11-30]
C[Diagram from http://senseis.xmp.net/?YamashitaFormation

One-space enclosure]
PL[B]

AB[ed][oe]

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

;
)
