P 31 1 2,NR.151*MJ*
LATT    -1
SYMM    -Y, X-Y,   .33333+Z
SYMM   Y-X,  -X,   .66667+Z
SYMM     X, X-Y,      -Z
SYMM   Y-X,   Y,   .33333-Z
SYMM    -Y,  -X,   .66667-Z
    0 1 / 0 1 / 0 .1666
    P 31 1 2,NR.151*MJ*