Uploaded Example 17 from the manual

Example17_SharedEvents_ProbabilityCalculationsType1.mp

+/* Example17_SharedEvents_ProbabilityCalculationsType1.mp
+
+	A simple example of shared events. If one root has a, the other root
+also has a. If neither root has a, then root 1 must have b, and root 2
+must have c. Additionally, probabilities show how "SHARE ALL" increases
+the chances of the shared event.
+
+*/
+SCHEMA Shared_Events
+
+ROOT R1: (<<0.6>> a | b);
+ROOT R2: (<<0.8>> a | c);
+R1, R2 SHARE ALL a;
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