Problem Desoription: You are asked to write a program which analyzes. Lincoln's Gettysburg Address. A text file copy 15 on pilot under Contents for 1ab. 5. Use the open construct and file read to put the entire file in one string. Prompt the user for the filename. Dse the string count function as needed. Be sure to olose the file at the end of your program. The filename, gettyaburg,address, txt, must be user input. Below is sample output. Write your program so that you can determine the integer values of the question marks below. There are? characters in the file. There are ? newline characters There are 2 double dash characters There are? single spaces There are? commas There are ? periods There are? uppercase letters There are? lowercase letters There are ? non-letter characters There are ? sentences (1 point optional extla credit) There are? words (1 point optional extra credit) Use the standard header comments and enclose output for your program which at the end of the file delimited by apostrophes. Your program may be tested on other files in addition to the Gettysburg Address. gettysburg_address.txt (File on Pilot) Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave theix lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we can not dedicate -- we can not consecrate -- we can not hallow -- this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poof power to add or detract. The world will little note, nor long remember whlt we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us -- that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion -- that we here highly resolve that these dead shall not have died in vain -. that this nation, under God, shall have a new birth of freedom -. and that government of the people, by the people, for the people, shall not perish from the earth. (Hint: There are 22 commas and 10 periods! Check that by hand and verify with your program.)