A man wearing a red shirt is climbing up the rock wall.
cat chased by dogs
Man and cat are two different subjects. Climbing and chased are two different activiites. Wall and dogs are two different objects.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(n_wall(x4) & of(x4,x5) & n_rock(x5) & a_up(s2) & Manner(e2,s2) & Theme(e2,x4) & Actor(e2,x1) & v_climb(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shirt(x3) & a_red(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Actor(e1,x2) & n_dog(x2) & Theme(e1,x1) & v_chase(e1) & n_cat(x1))