A man helps a girl get up on a turquoise surfboard.
There is only one black surfboard.
If a surfboard is black then his color can't be turquoise
exists e1 e2 s1 x1 x2 x3 x4 x5.(a_up(s1) & Manner(e2,s1) & on(e2,x4) & n_surfboard(x4) & of(x4,x5) & n_turquoise(x5) & Actor(e2,x1) & v_get(e2) & Theme(e1,x3) & Actor(e1,x2) & v_help(e1) & n_girl(x3) & (x1 = x2) & n_man(x1))
exists p1 x1 s1 x2.((x1 = x2) & n_surfboard(x2) & a_black(s1) & Theme(s1,x2) & card_eq_1(x2) & r_only(x2))