*
* Define geometry
*
surface / bbox / reflect / box / .1 .1 .1 / .9 .9 .9
surface / s1 / intrface / sheet  / cmo_2
surface / s2 / intrface / sheet  / cmo_3
*
region / r1 / lt bbox and gt s1 and gt s2
region / r2 / lt bbox and gt s1 and lt s2
region / r3 / lt bbox and lt s1 and gt s2
region / r4 / lt bbox and lt s1 and lt s2
*
mregion / mr1 / le bbox and gt s1 and gt s2
mregion / mr2 / le bbox and gt s1 and lt s2
mregion / mr3 / le bbox and lt s1 and gt s2
mregion / mr4 / le bbox and lt s1 and lt s2
*
finish