Can we sit on the grass , darling ?   No , you can't , darling . The grass is wet .   Look , darling ! I can see a bench near that tree .   No , you can't . The bench is wet , too .   It's not raining , darling . The bench isn't wet .   Can't you see a notice on the bench ?   Yes , I can .   What does the notice say ?   It says ' Wet paint ! ' 