How to use roman numerals<br>Understand the concept of roman numerals. Roman numerals use fewer symbols than the number system you are used to. I is the number 1 (one), v is 5 (five), and x is 10 (ten), for example.
The concept of roman numerals is simple for everyone. 
( z1 simple :ARG1 ( z2 concept :topic ( z3 numeral :mod ( z4 country :name ( z5 name :op "Rome" ) ) ) ) :beneficiary ( z6 everyone ) )