net
{
    node_size = (100 40);
}

node Pregnant
{
    label = "Pregnant";
    position = (170 221);
    states = ("No" "Yes");
}

node Preg_Test
{
    label = "Preg_Test";
    position = (380 221);
    states = ("Good" "Bad");
}

node Preg_Diagnose
{
    label = "Preg_Diagnose";
    position = (380 80);
    states = ("Neg." "Pos.");
}

potential (Pregnant)
{
    data =
	( 0.3 0.7 );
}

potential (Preg_Test)
{
    data =
	( 0.5 0.5 );
}

potential (Preg_Diagnose | Pregnant Preg_Test)
{
    data =
	((( 0.85 0.15 )   	%  No  Good
	  ( 0.65 0.35 ))  	%  No  Bad
	 (( 0.05 0.95 )   	%  Yes  Good
	  ( 0.15 0.85 )));	%  Yes  Bad
}