riso.belief_nets.BeliefNetwork cambridge-report
{
	riso.belief_nets.Variable elvis-is-here
	{
		type discrete { "is-present" "is-not-present" }
		distribution riso.distributions.Discrete { dimensions { 2 } probabilities { 0.999 0.001 } }
	}

	riso.belief_nets.Variable cabbie-says-she-saw-elvis
	{
		type discrete { "she-did-not-say-it" "she-did-say-it" }
		parents { elvis-is-here }
		distribution riso.distributions.ConditionalDiscrete 
		{
			dimensions-child { 2 }
			dimensions-parents { 2 }
			probabilities
			{
				% context: elvis-is-here == 0
				0.9999 0.0001

				% context: elvis-is-here == 1
				0.9 0.1
			}
		}
	}

	riso.belief_nets.Variable friend-1-says-cabbie-saw-elvis
	{
		type discrete { "he-did-not-say-it" "he-did-say-it" }
		parents { cabbie-says-she-saw-elvis }
		distribution riso.distributions.ConditionalDiscrete 
		{
			dimensions-child { 2 }
			dimensions-parents { 2 }
			probabilities
			{
				% context: cabbie-says-she-saw-elvis == 0
				0.90 0.10

				% context: cabbie-says-she-saw-elvis == 1
				0 	1
			}
		}
	}

	riso.belief_nets.Variable friend-2-says-cabbie-saw-elvis
	{
		type discrete { "he-did-not-say-it" "he-did-say-it" }
		parents { friend-1-says-cabbie-saw-elvis }
		distribution riso.distributions.ConditionalDiscrete 
		{
			dimensions-child { 2 }
			dimensions-parents { 2 }
			probabilities
			{
				% context: friend-1-says-cabbie-saw-elvis == 0
				0.999 0.001

				% context: friend-1-says-cabbie-saw-elvis == 1
				0.001 0.999
			}
		}
	}
}