Given the input 'Hey! How are you?'. The first and second words, i.e. 'Hey' and 'How', each start with a capital letter. Transforming the input text in lower case results in the output'hey! how are you?'. Given an input text 'you got it'. All words are written in lower case. The output is 'you got it'. Given an input text 'WOW'. All letters of the input text are written in upper case. Transforming the input text in lower case results in the output 'wow'.
['Hey! How are you?'] ['you got it'] ['WOW']
'hey! how are you?' 'you got it' 'wow'