In which country can one find " Futomaki " rolls ?
A set of dice is nontransitive if it contains three dice , " A " , " B " , and " C " , with the property that " A " rolls higher than " B " more than half the time , and " B " rolls higher than " C " more than half the time , but it 's not true that " A " rolls higher than " C " more than half the time .