input: 
  def vowelCheck(inputString: str) -> str:
      """
      Detect and return the first vowel found in the given string.
      >>> vowelCheck("Hello World")
      'e'
      >>> vowelCheck("Why")
      """
      vowels = ['a','e','i','o','u','A','E','I','O','U'] 
      for x in inputString: 
          if x in vowels: 
              return x
  
output:     return ''