toplevel "A";"A" or "B" "C";"B" wsp "I" "J";"C" wsp "M" "J";"I" lambda=0.5 dorm=0.3;"J" lambda=0.5 dorm=0.3;"M" lambda=0.5 dorm=0.3;
toplevel "A";
"A" or "B" "C";
"B" wsp "I" "J";
"C" wsp "M" "J";
"I" lambda=0.5 dorm=0.3;
"J" lambda=0.5 dorm=0.3;
"M" lambda=0.5 dorm=0.3;