Answer:
Python.
Explanation:
// Ask user for input string and store it to variable
sentence = input("Enter a sentence: ")
// Loop through each character in string
for character in sentence:
// Check for vowel
if character == 'a' or character == 'e' or character == 'i' or character == 'o' or character == 'u':
// print the vowel
print(letter)
