a bald man in gray is holding out a stick whilst a black and brown dog jumps up to catch it.
A man and dog are practicing a trick
Just because the dog jumps up to catch the stick from the man does not mean that they are practicing a trick.
exists e2 e1 p1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6.(a_up(s5) & Manner(e2,s5) & Topic(e2,p1) & Actor(e2,x6) & v_jump(e2) & exists e3.(Theme(e3,x1) & Actor(e3,x6) & v_catch(e3)) & n_thing(x1) & n_dog(x6) & a_brown(s4) & Theme(s4,x6) & a_out(s3) & Manner(e1,s3) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & r_a(s2) & Theme(s2,x5) & a_black(s2) & (x3 = x5) & n_whilst(x3) & of(x3,x4) & n_stick(x4) & in(x1,x2) & n_gray(x2) & n_man(x1) & a_bald(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_practice(e1) & n_trick(x4) & n_dog(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))