public void testEqualsMvr()
{
String s1 = "count 1 1 ?var11583106 ?var11583106";
String s2 = "count 1 1 ?var11580908 ?var11580909";
Fact f1 = Fact.fromExpression( parser_.parse(s1) );
Fact f2 = Fact.fromExpression( parser_.parse(s2) );
// Make sure f1 can't map to f2
assertFalse(f1.canMapVariables(f2));
// But, that f2 can map to f1
assertTrue(f2.canMapVariables(f1));
}