Code below is in Python. Please provide a written description of what each program below will do.

# Program 1 name = input() while not name.isalpha(): name = input() print(name.capitalize()) # Program 2 count = 0 sentence = input() for letter in sentence: if letter in "aAeEiIoOuU": count = count + 1 print(count) # Program 3 letter = input() word = "antidisestablishmentarianism" for char in word: if char == letter: print(char) # Program 4 letter1 = input() letter2 = input() while letter2 == letter1: letter2 = input() alpha = "AbCdefGHiJKLmnoPqRsTUvwxyZ" location1 = alpha.find(letter1.lower()) location2 = alpha.find(letter2.lower()) if location1 == -1: letter1 = letter1.upper() else: letter1 = letter1.lower() if location2 == -1: letter2 = letter2.upper() else: letter2 = letter2.lower() alpha = alpha.replace(letter1, letter2) print(alpha)