The program will halt when the user enters "quit" $($any combination of lower and upper case letters, such as "QUIT", "Quit" or "qUIt"$).$

Suggestions:

a$)$ Use. lower $()$ to change the word to lower case.

b$)$ How do you find the position of the first vowel? I like using enumerate $($word$)$ as in for $i,$ ch in enumerate $($word$)$

where ch is each character in the word and $i$ is the character's index $($position$).$

c$)$ Use slicing to isolate the first letter of each word.

d$)$ Use slicing and concatenation to form the equivalent Pig Latin words.

e$)$ Use the in operator and the string "aeiou" to test for vowels. Good practice: define a constant VOWELS $=$ "aeiou"