A young man wearing black pants and a red shirt is snowboarding.
A dog is sleeping.
A young man wearing black  pants and A dog is sleeping.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5.(Actor(e2,x1) & v_snowboard(e2) & subset_of(x5,x1) & n_shirt(x5) & a_red(s3) & Theme(s3,x5) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_pants(x4) & a_black(s2) & Theme(s2,x4) & (x2 = x3) & n_man(x2) & a_young(s1) & Theme(s1,x2))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_dog(x1))