Checking the sounds system out.
The man is looking at the sound system.
Not everyone who looks at sound systems is a man.
exists e1 s1 x1 x2 x3.(n_system(x2) & of(x2,x3) & n_sound(x3) & a_out(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_check(e1) & n_thing(x1))
exists e1 x1 x2 x3.(n_system(x2) & of(x2,x3) & n_sound(x3) & n_man(x1) & at(e1,x2) & Actor(e1,x1) & v_look(e1))