network unknown {
}
variable Disease {
  type discrete [ 2 ] { no, yes };
}
variable Test1 {
  type discrete [ 2 ] { no, yes };
}
variable Test2 {
  type discrete [ 2 ] { no, yes };
}
probability ( Disease | Test1, Test2 ) {
  (no, no) 0.7, 0.3;
  (yes, no) 0.6, 0.4;
  (no, yes) 0.6, 0.4;
  (yes, yes) 0.05, 0.95;
}
probability ( Test1 ) {
  table 0.6, 0.4;
}
probability ( Test2 ) {
  table 0.7, 0.3;
}
