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