First, the element "pro" will be difficult to remember because of its small size and will not be immediately perceived as a word since the three letters of which it consists are spaced far apart from one another. ###>En effet, d'une part, l'élément 'pro' sera difficilement retenu à cause de sa petite taille et il ne sera pas imm édiatement perçu en tant que mot, les trois lettres le composant étant très écartées les unes des autres.