A shirtless man in striped shorts and sunglasses with a man in white shirt and sunglasses.
a man without a shirt regrets not bringing sunglasses while his friend enjoys perfect vision
Just because there are two men in sunglasses does not mean there is a man without a shirt there who  regrets not bringing sunglasses while his friend enjoys perfect vision
exists s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & in(x1,x2) & subset_of(x4,x2) & with(x4,x5) & subset_of(x8,x5) & n_sunglass(x8) & subset_of(x6,x5) & in(x6,x7) & n_shirt(x7) & a_white(s3) & Theme(s3,x7) & n_man(x6) & n_sunglass(x4) & subset_of(x3,x2) & n_shorts(x3) & a_striped(s2) & Theme(s2,x3) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
exists x1 x4.(-exists e1 p1.(exists e2 p2 x3.(exists e3 s1 x5.(Theme(e3,x5) & Actor(e3,x4) & v_enjoy(e3) & n_vision(x5) & a_perfect(s1) & Theme(s1,x5)) & while(e2,p2) & Theme(e2,x3) & Actor(e2,x1) & v_bring(e2) & n_sunglass(x3)) & Topic(e1,p1) & Actor(e1,x1) & v_regret(e1)) & n_friend(x4) & of(x4,x1) & n_male(x1) & -exists x2.(with(x1,x2) & n_shirt(x2)) & n_man(x1))