A shirtless man painting graffiti on a wall.
A shirtless man painting in the rain.
Being shirtless does not imply that there is rain.
exists s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_wall(x4) & Time(x1,x3) & n_graffitus(x3) & n_painting(x1) & of(x1,x2) & n_man(x2) & a_shirtless(s1) & Theme(s1,x1))
exists s1 x1 x2 x3.(n_rain(x3) & a_topic(x1) & in(x1,x3) & n_painting(x1) & of(x1,x2) & n_man(x2) & a_shirtless(s1) & Theme(s1,x1))