In general, using ALL CAPITAL LETTERS is considered rude, and may be interpreted as screaming or shouting in written text.
ALSO, IT SEEMS A LITTLE HARDER TO READ.
Given dialogues that are writen in all-caps, you've decided to transform them to all-lowercase.
A string consisting of only capital letters, whose length does not exceed 100.
A string consisting of only lowercase letters, followed by a newline character.