title: How to use Pattern to check if a string matches any numerals in I, II, III, IV, V
body: <p>If I have a string a = I,II,III,IV,V,VI,VII,VIII</p>
  
  <p>How can I use pattern to check if my input string matches any of these roman numbers?</p>
  
  <p>Or is there any easier way to do so?</p>