There are long, red, padded benches behind the five screens, with only one man there to watch.
the man is a thief
The fact that there is one man to watch behind five screens does not imply that the man is a thief.  He could be any type of criminal.
exists p1 p2 s1 x1 x2 x4.(n_screen(x4) & card_eq_5(x4) & with(p1,x2) & Topic(x2,p2) & exists e1 x5.(Theme(e1,x5) & Actor(e1,x2) & v_watch(e1) & n_thing(x5)) & r_there(x2) & n_man(x2) & card_eq_1(x2) & r_only(x2) & a_long(s1) & Manner(p1,s1) & exists s2 s3 s4 x3.((x1 = x3) & behind(x3,x4) & n_bench(x3) & a_padded(s4) & Theme(s4,x3) & a_,(s3) & Theme(s3,x3) & a_red(s2) & Theme(s2,x3)))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_thief(x2)))