The man wearing orange is dropping tools from the upper scaffold to the man in the red vest on the lower scaffold.
Two men are working on scaffolds.
Two men dropping tools from upper scaffolding to lower scaffolding from one man to the next means they are working on scaffolds.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6.(n_scaffold(x5) & n_scaffold(x5) & r_more(s3) & a_lower(s3) & Theme(s3,x5) & n_vest(x6) & a_red(s2) & Theme(s2,x6) & n_man(x1) & n_man(x1) & a_upper(s1) & Theme(s1,x5) & on(e2,x5) & in(e2,x6) & to(e2,x1) & from(e2,x5) & Theme(e2,x4) & Actor(e2,x1) & v_drop(e2) & n_tool(x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_orange(x3) & (x1 = x2))
exists e1 x1 x2.(on(e1,x2) & n_scaffold(x2) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_2(x1))