The objective of this problem is to determine the number of unique vowels used in the given string.
Now count vowels in STRING.
STRING='We are the MaTLaBins'; then OUTPUT is 3
STRING='LaBoRaToRy'; then OUTPUT will be 2
Just to clarify the problem statement: the objective of this problem seems to be to determine the number of unique vowels used in the given string.
Correct output for Laboratory is 3.
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