toplevel "System";

"System" or "S" "N";

"N" lambda=2e-5 dorm=0;

"S" and "CMA" "CMB";

"CMA" or "DiskA" "PA" "MemA";
"DiskA" wsp "DAA" "DAB";
"PA" lambda=500e-5 dorm=0;
"MemA" wsp "MA" "MC";
"DAA" lambda=80000e-5 dorm=0.5;
"DAB" lambda=80000e-5 dorm=0.5;
"MA" lambda=30e-5 dorm=0;

"CMB" or "DiskB" "PB" "MemB";
"DiskB" wsp "DBA" "DBB";
"PB" lambda=500e-5 dorm=0;
"MemB" wsp "MB" "MC";
"DBA" lambda=80000e-5 dorm=0.5;
"DBB" lambda=80000e-5 dorm=0.5;
"MB" lambda=30e-5 dorm=0;

"MC" lambda=30e-5 dorm=0.5;