toplevel "A";
"A" and "BA" "BB" "BC" "BD" "BE" "BF";
"BA" and "CA" "DA";
"BB" and "CB" "DB";
"BC" and "CC" "DC";
"BD" and "CD" "DD";
"BE" and "CE" "DE";
"BF" and "CF" "DF";
"CA" lambda=0.5 dorm=0;
"DA" lambda=0.5 dorm=0;
"CB" lambda=0.5 dorm=0;
"DB" lambda=0.5 dorm=0;
"CC" lambda=0.5 dorm=0;
"DC" lambda=0.5 dorm=0;
"CD" lambda=0.5 dorm=0;
"DD" lambda=0.5 dorm=0;
"CE" lambda=0.5 dorm=0;
"DE" lambda=0.5 dorm=0;
"CF" lambda=0.5 dorm=0;
"DF" lambda=0.5 dorm=0;