toplevel "A";"A" and "B" "C";"X" seq "B" "C";"B" lambda=0.5 dorm=0.3;"C" lambda=0.5 dorm=0.3;
toplevel "A";
"A" and "B" "C";
"X" seq "B" "C";
"B" lambda=0.5 dorm=0.3;
"C" lambda=0.5 dorm=0.3;