The correct answer to this open question is the following.
Although there are no words, phrases, or references attached, we can do research and answer the following.
"Four score and seven years ago our father brought forth on this continent, a new nation..." was the beginning of a speech that referred to the American Revolution (1776), which was the Independence war when the Continental Army led by General George Washington defeated the British troops.
"...conceived in Liberty, and dedicated to proposition that all men are created equal." This upheld the idea (expressed in the Declaration of Independence) of liberty and equality for ALL. The Declaration of Independence was promulgated on July 4, 1776.
"Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated, can long endure." This refers to the idea that the American Civil War was a test of democracy.
"We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live." This refers to the purpose of the ceremony that was held on November 18, 1863. It was known as the Gettysburg address.
"...that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion..." This refers to Lincoln's idea that the dead inspire the living.
"...and that government of the people, by the people, for the people..." This reaffirmed the idea of government by consent of the people, as it was expressed in the Constitution of the United States.
