if passenger['Sex'] == 'male':
            # male
            if passenger['Age'] < 10:
                if passenger['Pclass'] == 3:
                    if passenger['SibSp'] > 1:
                        predictions.append(0)
                    else:
                        predictions.append(1)
                else:
                    predictions.append(1)
            elif passenger['Age'] < 18:
                if passenger['Pclass'] == 1:
                    predictions.append(1)
                else:
                    predictions.append(0)
            else:
                predictions.append(0)
        else:
            # female
            if passenger['Pclass'] == 3:
                if passenger['Age'] > 20 and passenger['Age'] < 60:
                    predictions.append(0)
                elif passenger['SibSp'] > 2:
                    predictions.append(0)
                elif passenger['Parch'] > 3:
                    predictions.append(0)
                else:
                    predictions.append(1)
            else:
                predictions.append(1)