The anwser to your question is -ible
To make something less confusing or to ake clearer
It's safe to assume that President Lincoln use Logical appeal
so you can see how he analyze the Constitution and find out its meaning to give an explanation to his audience hope i was a help :D
I think macbeth and lady macbeth has something to do with banquo death and i also think that they are going to the funeral to see whats going on and probably who going to be there