Onlookers watch a man with a black helmet leaning against a tree, playing a type of instrument.
People are watching a man in the park.
It is implied the tree is in a park. Onlookers are a type of people.
exists e3 e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(Theme(e3,x2) & Actor(e3,x1) & v_watch(e3) & Theme(e2,x7) & Actor(e2,x6) & v_play(e2) & of(x7,x8) & n_instrument(x8) & n_type(x7) & (x2 = x6) & with(x2,x3) & against(e1,x5) & n_tree(x5) & Actor(e1,x4) & v_lean(e1) & (x3 = x4) & n_helmet(x3) & a_black(s1) & Theme(s1,x3) & n_man(x2) & n_onlooker(x1))
exists e1 x1 x2 x3.(n_park(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_man(x2) & n_people(x1))