Letter A
We could say that the letter A is the sign of the feminine gender.
Its opposite would be the letter E , the sign of the male gender.
The sign of the neutral gender would be the letter O .
If we had a number of two digits ... when the tens digit is greater than the digit of the units it is said that the gender is female. On the contrary, when the tens digit is less than the digit of the units it is said that the gender is masculine. But when the values of the units and the tens are equal it is said that the number is neutral.
An example:
For the two-digit number ... 52, the gender would be female.
For the number ... 25 the gender would be male.
For the number ... 55 the gender would be neutral
