How does the structure and diction of the speech contribute its meaning?

In the Gettysburg address the tone was powerful but humble. See Lincoln was trying to keep the county from splitting apart and to become unit and provoke hope in the union, towards the possible defeat of the confederacy, while honoring those who died at Gettysburg.

they fear for their lives

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."