public bool CheckDependencies(Result messages)
{
var dependencies = new Dictionary <Question, HashSet <Identifier> >();
foreach (var statement in Statements)
{
statement.GetDependencies(dependencies);
}
var checker = new DependencyChecker();
foreach (var dependency in dependencies)
{
checker.AddDependencies(dependency.Key, dependency.Value);
}
checker.Check(messages);
return(true);
}